The Lite doesnt play 8 bit GB games.
I have a lot of different GBA compatible devices, probably most of them. My preference is the Micro and the GB Player. If you don't mind how dumb and ugly it is, the original DS is pretty cool too.
The Micro is small, but it's well designed. The OG GBA isn't. It's large enough that it should be comfortable but it isn't. It's also easy to drop, hard to find a good color, and almost impossible to see. IMHO, it sucks. The Micro on the other hand is beautiful. Like some LE Sony Walkman from the 90s, the all metal hand made in Japan ones. It's not actually that nice of course since it was only $100 but it's nice. And metal. Metal is good.
The color bias of various GBA screen changes a lot. So much so that some carts actually have a setting for it. The "better" screens on the Lite and GBASP2 have all their colors way out of whack. The OG SP had a blue tint to everything, but the Lite abd SP2 went totally in the opposite direction. I don't care for it.
The most neutral screen is probably the OG DS. It also plays Z80 games.