The big four have all been linked with 19-year-old Delph while Newcastle and Fulham, with cash to play with after selling Jimmy Bullard to Hull, have shown an interest.
But why would Delph swap a starting place at Elland Road for anything but a mega-bucks move to Manchester United, Arsenal, Liverpool or Chelsea?
We thought we would compare Leeds with two of the clubs chasing Delph - Premier League outfits Fulham and Sunderland.
Fabian Delph in action for Leeds against Brighton earlier this month
LEEDS UNITED TODAY'S POLL If you were Fabian Delph, who would you sign for?
VOTE POLL RESULTS Close
Click to view yesterday's poll results
Never the club that could be described as 'most liked' but undeniably one of English football's marquee clubs.
From Champions League semi-finalists in 2001 to languishing in the old third division now, the story of Leeds' financial mismanagement and decline has been well documented, but despite that they do still stand up as a genuine big name and it is surely only a matter of time (five years let's say) before they reach the top flight again.
Sir Alex Ferguson was still waiting for his first title when Howard Wilkinson's Leeds team won the league in 1992. But the club will forever be associated with their great sides of the late 1960s and early 1970s. Billy Bremner, John Giles, Peter Lorimer, Jack Charlton et al inspired the club to two league titles, an two FA Cup and two Fairs Cups, and many good judges believe they should have won more.
The Leeds squad pictured during their glory years in 1972
HAVE YOUR SAY. IF YOU WERE LEEDS STARLET FABIAN DELPH, WOULD YOU RATHER PLAY FOR LEEDS OR FULHAM? Why would Leeds starlet Fabian Delph swap a starting place at Elland Road for anything but a mega-bucks move to one of the 'Big Four'? Should he stay in Yorkshire or join Fulham?
TELL US WHAT YOU THINK
LAST FIVE HOME GATES: 22,766, 22,411, 33,580, 19,625, 21,182
HONOURS: Three league titles: 1968-69, 1973-74 and 1991-92; One FA Cups: 1972; League Cup: 1968; Two Fairs Cups: 1967-68, 1970-71
EUROPEAN PEDIGREE: Leeds have built up a proud reputation on the continent. Long before they reached the Champions League semi-finals in 2001, Leeds had tasted success. Fairs Cup wins in 1968 and 1971 (and a final in 1967) and a European Cup final in 1975 are the highlights of the club's European adventures.
DELPH'S CURRENT TEAM-MATES: Gary McAllister departed the club after a poor set of results earlier in the season, but with Simon Grayson now at the helm a decent run over the next couple of months could well see Leeds establishing themselves in the play-off places. Could Delph be playing in the Championship come August? Leeds might be in the same division as Sunderland next season. In-form striker Jermaine Beckford has impressed in League One this term with 21 goals. Former Celtic midfielder Paul Telfer has a wealth of experience, while Lee Trundle has ended his Bristol City nightmare by joining the club for a loan spell.
Jermaine Beckford has been amongst the goals for Leeds this season
FULHAMThere was a time when Fulham used to be many people's second favourite team - that has probably changed with the club making their way up the leagues and establishing themselves in the top flight, but it isn't easy to dislike Fulham.
For one there is something so gloriously old school about the club and the ground, like a throwback to a different time.
Pure old school: Craven Cottage
On the honours front the cupboard is bare however. An FA Cup final defeat against West Ham in 1975 was the closest the club have come to big time silverware.
LAST FIVE HOME GATES: 24,740, 25,139, 24,012, 23,722, 25,462
HONOURS: No major trophies
EUROPEAN PEDIGREE: None to speak of
DELPH'S POTENTIAL TEAM-MATES: Roy Hodgson has worked wonders since joining the club. He saved them from almost certain relegation last season, and has taken them to mid-table security this time round, playing some fine football in the process. He is known to be a fan of Delph, and recently saw him play magnificently for Leeds in their clash with Brighton.
Delph would surely enjoy playing alongside former Liverpool star Danny Murphy in midfield. Former Everton striker Andy Johnson would be one of those to benefit from Delph's arrival, while at the other end Mark Schwarzer is one of the game's top goalkeepers.
Danny Murphy is one of the genuine stars of Fulham's team
SUNDERLAND Again quite an easy club to like. One of the main ways to guage the size of a club is the size and quality of their support, and there is no doubt that in that respect Sunderland are indeed a big club.
Ian Porterfield scored to give Sunderland a memorable win over Leeds i the 1973 final
The Black Cats have won six league titles yes that is more than Leeds (and Newcastle as an interesting aside) but the last of them was in 1936.
The second of their two FA Cup wins in 1973 came against Leeds in one of the great emotional Wembley finals.
LAST FIVE HOME GATES: 35,222, 35,457, 36,280, 44,680, 40,350
HONOURS: Six league titles: 1891-92, 1892-93, 1894-95, 1901-02, 1912-1913, 1935-36; Two FA Cups: 1937 and 1973
EUROPEAN PEDIGREE: None to speak of.
Kenwyne Jones signed a new four-and-a-half-year deal with Sunderland on Tuesday
DELPH'S POTENTIAL TEAM-MATES: It has been anything but a peaceful season at the Stadium of Light, with Roy Keane's dramatic decision to quit and Ricky Sbragia coming in, but there is still plenty of talent in Sunderland's line-up.
Kenwyne Jones has signed on the dotted line to give the club a major boost in their Premier League relegation battle, and with France international Djibril Cisse to count on there is always potential for goals. Delph would also play alongside Andy Reid, who is currently in fine form in Sunderland's midfield.
Sunderland boss Sbragia joins chase for Leeds' £8m-rated youngster Delph
Leeds facing a battle to keep hold of Delph as Fulham look to spend Bullard cash
FULHAM FC NEWS FROM ACROSS THE NET
SUNDERLAND FC NEWS FROM ACROSS THE NET