Yeah, the comparison really falls apart with the open world of Zelda. I've only played Wind Waker and Twilight Princess. In WW, the world seemed very important to me. At least so far in TP, the game has been solely driven by the dungeons and the collecting light sections. Honestly, IMO so far the game could drop the open world structure and go to a level structure and not suffer one bit.
My Top 5:
Shadow of the Colossus, Metal Gear Solid 3, Shenmue, Skies of Arcadia, Chrono Trigger
My 2 nex-gen systems: PS3 
and Wii 
Prediction Aug '08: We see the PSP2 released fall '09. Graphically, it's basically the same as the current system. UMD drive ditched and replaced by 4-8gb on board flash memory. Other upgrades: 2nd analog nub, touchscreen, blutooth, motion sensor. Design: Flip-style or slider. Size: Think Iphone. Cost: $199. Will be profitable on day 1.
