It's not so much the actual quotient of Brits on the list HG and nimrod; rather the inclusion of acts like Supertramp, CSN&Y and Steve Miller (which I thought jarred in the company of the more mainstream giants - be they British OR American - like Stones, Elvis, The Who, Led Zep, Dylan et al). I always regard such outfits as having disproportionately huge soft rock-ish appeal to you guys across the pond and would personally lump them alongside artists such as REO Speedwagon, Doobie Brothers, Foreigner, Air Supply, Boston etc none of whom would - I imagine - figure particularly prominently on a list generated by a middle aged Brit (but I don't speak for all of us and could well be wrong!).
By the way I'd like to stress that this is in no way whatsoever a criticism of Todd's list. I just think you'd be a bit bemused if a Brit had done the list and thrown in people like ELO, T.Rex, The Jam or Abba for example. And I can never quite get my head around this idea that The Zombies get such a shout on these things either to be honest. Surely they're minnows in comparison to the likes of DC5, Manfred Mann or The Hollies, to name but three examples?