Games are too cookie cutter and simple. I need something unique, creative, inspiring, and addicting like Fallout 3. Most games just don't have charm, or challenge intelligence. I want more puzzles in my adventure games, like in Ocarina of Time, or Myst. Stop spoon feeding me. The only way a society improves is by challenging the other members to be better. Cmon gaming... challenge me. Not Ninja Gaiden style though, thats not a challange, thats just wrong.
All time? N64. Current, XBOX 360. My Wii just collects dust, my PS3 only gets played when I want to go to Fenway and play some baseball. XBOX live is pure magic (aside from some of the people on it). But the ease of getting together with friends online is amazing. The PS3 online structure is just weird.
Fallout 3 if you like modern setting, Oblivion if you like Swords, Magic, and Dragons. I've been playing for about 75 hours now and haven't finished it (by choice). There is so much more to explore in the Capital Wasteland, I have only discovered 50% of the locations it's awesome.