no. all the fighters who you mentioned coming back didnt do too hot in Pride either.
after dominating the UFC's LW division, Jens got KTFOd by Gomi and beaten soundly by sakurai, the number #1 and #2 LWs in the world.
matt lindland is ranked the #2 MW in the world. he outwrestled Rampage because of his skill on the ground. Lindland has also vastly improved recently, getting better standup and really going to finish fights.
Yves didnt look like shit when he almost KTFOd Stevenson several times and then got cut
Josh Thomson lost to... clayton? after winning in Pride
fighters lose. thats what happens. because it happened for a few when they left pride, normally after several losses, it makes them weaker?
HW: Cro Cop | Barnett | Gonzaga
LHW: Rampage| Shogun
MW: KANG | Sakuraba | Spider Silva | Baroni | Akiyama
WW: Thiago Alves | GSP | Mach
LW: Gomi | BJ Penn | Aoki | Jamie Varner reppin' AZCS | DIDA
9-7 in sig/av bets