Woah, I missed like 3 pages while I was out to Dallas. Give me a moment or five to address any possible concerns that may have been raised in this time.

Anyways since we're talking about favorites I'm just going to go ahead and say Gen 5 was great, if only because it tried to make a better story than previous main games. I'm still on the fence about the total reboot thing it had going on with the Pokemon, though. 
And now I generally don't pay much attention to the main Pokemon games. Didn't even buy ORAS. Mainly, I was too poor and had to choose between it and food, and I also saw no real reason to get it after the Battle Frontier got deconfirmed in the last couple of leaks. Now I just mess around with teams on P.Showdown.

Edit1: In regards to Giratina/Palkia/Dialga- I was planning on keeping the Time/Space due out of player's hands, mainly because they'd be too busy keeping the timeline intact and space unfucked. Giratina would be allowed, though keep in mind that it's a horrible creature from beyond human existence, completely and utterly alien to this world. Think elder god.

Edit2: In regards to Sylveon VS Giratina
252- SpA Giratina Shadow Ball vs. 252 HP / 252+ SpD Sylveon: 58-70 (14.7 - 17.7%) -- possible 9HKO after Leftovers recovery
0 SpA Pixilate Sylveon Hyper Voice vs. 248 HP / 8 SpD Giratina: 234-276 (46.5 - 54.8%) -- 9.8% chance to 2HKO after Leftovers recovery
and now VS. Yanmega
252 SpA Choice Specs Yanmega Air Slash vs. 252 HP / 252+ SpD Sylveon: 102-121 (25.8 - 30.7%) -- 4.3% chance to 4HKO after Leftovers recovery
0 SpA Pixilate Sylveon Hyper Voice vs. 0 HP / 0 SpD Yanmega: 217-256 (69.3 - 81.7%) -- guaranteed 2HKO

yeah