Izzy would have little for prime Wanderlei especially in the pride era given how much the sport has evolved since then...
Lets look at IZZY's best wins... 2x Knuckles and x1 Romero... what other high profile names at their prime has he fought that were forces to be reckoned with? Marvin and Paulo? Come on dude.. Cannonier is a good fighter but his only notable wins are washed Anderson, coin toss split over Strickland and Hermansson who's 50/50 in his last 6...
Prime Wanderlei has 2x Rampage, 2x Yoshida, 2x Sakuraba, Henderson, and Tamura, while there are a couple 'Who's That' the others are all note worthy... while his past prime UFC career is lack luster in the win column he did manage 6 fight of the nights and two knock out of the nights and a fight of the year... hard to scoff at those...While Israel certainly has his accolades too, they are to an extent racked up against a relatively lower tier of opponent. The wins over Yoel and Robert are very solid but the others are kinda meh... And please see post Matt Serra GSP for lay & pray wins.