If you consider games I've logged the most time on with my DS as my favorites, then those would be;
Asteroids (Retro Atari Classics)
Galaga (Namco Museum)
And the various Pac-Man games in DSpack. (mainly the standard versions of Pac-Man, Ms Pac-Man and Pac-Man Jr.)
Pretty much in that order too.
Those are the games I play the most. I am quite serious. Those are the games I guess you could call my favorites since I play them a lot. Mostly I play them while sitting on the crapper. I really don't play the DS that much anymore, I just collect all the numbered ROMs for the system. Not really sure why anymore.....just because I can I guess. I'd say a good 90% of the games I've played on the DS have rarely went beyond maybe 2 hours total playtime before I'm tired of them, so my nostalgic old-school games remain my favorites.
The DS has been quite a disappointment to me, I really thought we'd get more shmups and old-school classics than we have. My particular gaming tastes are a dying breed apparently.
To put things into perspective, I bought my black DS lite within the week they launched in America in September 2006 (I had a launch DSphat before that), it still works perfectly. No dead pixels, no cracked hinge, no bad scratches on the unit or screens, shoulder buttons still work and the touchscreen still functions correctly. The A button (that poor abused and overused A button) is only just now starting to show serious signs of wear and is getting mushy, but at this point it still works. The B button is also starting to get mushy, but is less severe. Luckily I already have 3 spare sets of the contact pads from DX. I'll be replacing them in my DSlite soon. Hope nothing goes wrong when I open it up.....it's never been taken apart before.
Anyone else have a DSlite that they have played on for the last 3.5 years that isn't totally ragged-out? I think that might be a pretty rare thing to behold, but I also realize that I don't log as many hours on the DS as most people do.
You know, I really need to be more concise with my posts. I'm becoming a rambling old fart......