I agree greatly with the Battle Network series. It's my favorite Megaman sub-series, next to Megaman Zero.
My choice would be White Knight Chronicles. Such a fun game, and I absolutely love the way they executed Avatar. Avatar is YOUR eyes in the world, your fighter alongside Leonard, your very own being within the game. Granted, I do wish that (s)he had some dialogue and was more central to the plot, but I think Avatar was a beautifully executed idea and I wish to see characters of this nature in more RPGs.
I saw Glover somewhere in here but I'm too lazy to look. But to that person, I agree with you! Glover was a fun little game.
Mission: Impossible on the Nintendo 64 was also pretty brilliant, along with Minority Report on PS2/Gamecube.
I miss in-game cheat codes the likes of which Minority Report had, and I would also love to see more of these implemented in newer games for when you just want to dick around and have fun.