Who wins this dream tournament?

All at their peaks in an open weight 1 night tournament.

1. Royce Gracie VS 2. BJ Penn
3. Matt Hughes VS 4. GSP
5. Ken Shamrock VS 6. Tito Ortiz
7. Frank Shamrock VS 8. Bas Rutten

9. Winner of 1vs 2 VS 10. Winner of 3 vs 4
11. Winner of 5 vs 6 VS 12. Winner of 7 vs 8

Winner of 9 vs 10 VS Winner of 11 vs 12

Royce Gracie VS BJ Penn
Matt Hughes VS GSP
Ken Shamrock VS Tito Ortiz
Frank Shamrock VS Bas Rutten

BJ Penn vs GSP
Ken Shamrock vs Frank Shamrock

GSP vs Ken Shamrock

Winner= Ken Shamrock

GSP or Tito

I'm trying real hard to think of a way I could argue BJ would win but it's just not possible. I gotta go with Tito.

Bas loses to Tito in the finals in a controversial decision where Bas had hurt Tito badly with leg kicks and nearly sub'd him, but the rest of the fight he was taking short gnp strikes with Tito in his guard doing superficial damage.

Tito wins decidedly if this happens in the UFC thanks to elbows.

Tito would manhandle all of them.

Can Gracie use his Gi and old schoold rules?

Doesn't matter if Royce can use the Gi or not. Fighters now are much more well rounded and versed in grappling. BJ already beat several Gracies and he'd light Royce up. In the end Tito takes it due to size and skill set.

Tito easily.

1. Royce Gracie VS 2. BJ Penn
3. Matt Hughes VS 4. GSP
5. Ken Shamrock VS 6. Tito Ortiz
7. Frank Shamrock VS 8. Bas Rutten

9. Penn VS 10. gsp ( same as 1&2)
11. Tito VS 12. Bas( tito gets it to the ground and does enough for decision)

GSP VS Tito just on size alone tito gets to the ground and holds dominant position