Treasure all the way, Mischief Makers, Sin & Punishment, Guardian Heroes, Gunstar Heroes, Ikaruga, Alien Soldier, Wario World, Light Crusader, full of enough variety and some fast paced action and wacky storylines makes this company one of my absolute favorite ones.
Intelligent Systems hasn't lived up recently to the quality I expect from them (since like Super Paper Mario and Radiant Dawn), not to say they are making bad games, I still enjoy Fire Emblem and Paper Mario but they haven't been their better games in a while, with the recent exception of WarioWare Gold, that game was amazing and to an extent Fates, mostly talking about Conquest since it had the best gameplay and level design from FE.
Capcom I don't like as a company even if they have some series I enjoy, Monster Hunter, Megaman and Ace Attorney, half of Devil May Cry, the good Dead Rising games (RIP) and some forgotten one off titles like Ghost Trick and Viewtiful Joe.