Just saying there's a difference between the greatest player you've seen live and the best performance by a player... In any case, when does a player become 'great' - you could see them when they're on the verge of greatness? (admittedly, anyone saying Beckham simply because they saw him coming...
Yes. but the thread's about the best player you've seen play - not necessarily the best performance (for what it's worth, the latter would be Paul Gascoigne for me - even though I've seen Maradona, Messi, Platini, Kaka, Dalgliesh, Keegan and other top players, his was the best individual...