I can't definitely talk about Gens 1-4 due to lack of experience/knowledge
Gen 5: Saturn (The PS3 of its era in that it was difficult to develop for, resulting in few games that stood out)
Gen 6: Xbox (It just didn't stand out to me at all, just felt like a PC for the living room)
Gen 7: Wii (A couple of really good games on there, but I think Nintendo dropped the ball hard, especially with AAA third-party support)
Hardware owned:
PC, PS4, 3DS, Wii, Xbox 360, PS3
Most anticipated games (near to mid future):
Zelda U/NX
The Last Guardian







