This Hull CD is absolutely essential but, please, read on as I explain why. There are a number of very subtle differences between this and the Leeds set, and, perhaps, the most notable is Keith Moon and where he sits in the sound mix here. Keith Moon is certainly dominant throughout the entire set, and his drums are `placed' very high in the mix resulting in a thundering and very relentless attack which brilliantly drives all the songs here.
Pete Townshend is very clean and his pick-ups (which I assume are his P90's on his SG) are brighter than ever. On the Leeds set you hear Pete's guitar very fuzzed out and distorted (even with reverb!), and the Hull set offers a nice clean contrast in places, while other places offer a more rounded smoother overdrive than Leeds. The `presence' and `closeness' of just Keith Moons drums and Pete Townshends guitar are enough to place you center stage in a way Leeds does not.
As for the bass, John Entwistle's playing is as strong as ever, and the over-dubs on the first few tracks are not exposed by the rest of the set - the tone, timing, and volume are all consistent from start to finish and any overdubs are actually undetectable (don't worry!). And Roger Daltrey's vocals are absolutely flawless; very powerful, very touching, and very admirable.
Whilst this set is no-where near as `polished' as Leeds, it does offer an invaluable insight into how the band would have sounded on stage at that time - Leeds has always felt too `done' in my opinion, and the sound, when compared to Hull, is like comparing a studio recording with a live recording; Hull feels realer, truer, and more alive! The Hull CD gives great tribute to Keith Moon and Pete Townshend in particular, and Moon's playing is more daring, adventurous, and spontaneous (with fills unimaginably tight), and Towhshend cranking solo's demonstrate how diverse his playing is - what a great lead and rhythm guitarist!
After first purchasing `Live at Leeds' in 2001 (at the age of 11) and playing it extensively over the last 11 years, I can conclude that Hull may be the rawer, truer, and superior set to Leeds. Overall, I'd highly recommend this CD set and, having been a strong fan of The Who for years, would rate it as highly as Who's Next, Isle Of Wight 1970, and Quadrophenia.