GBA in the first place, second is DS and 3DS, third original GB, the last is Switch for some reason.

Probably the DS. Unique set of games, decent library and a brilliant homebrew scene.

Switch

Not in order but BotW, Astral, Odyssey, Dread and Mansion 3.

Holy shit the 3DS is in last almost??? Other than Switch, I think its pretty easily the best imo

I voted Switch. The GBA is a really good system too.

GBA for me.

Metroid: Zero Mission
Castlevania: Aria of Sorrow
Rhythm Tengoku
Pokémon Emerald
Legend Of Zelda: Minish Cap

Counting Switch makes this an obvious choice for me.
In second place it would then be the 3DS.

My top 5 3DS games:
1. The Legend of Zelda: A Link Between Worlds
2. The Legend of Zelda: Majora's Mask 3D
3. Super Mario 3D Land
4. The Legend of Zelda: Ocarina of Time 3D
5. Luigi's Mansion 2

Gameboy Advance SP, I had so many games for that thing and to this day it was the one handheld I discovered growing up and had no idea it even existed at the time (because it wasn't sold in the UK till half a year later, since I bought it in the US).

Second would be the DS, because it was new and innovative at the time, and I again had a load of games going for that system.

Third would be Gameboy Colour, which again I had a ton of games for, and it got me by for years on end, until I nabbed a GBA.

Worst out of the lot I've owned would have to be the Switch, thanks to the stick drift, high game prices, lack of 1st party games for my tastes and battery life/audio/screen not being so great.

Switch.
- Super Mario Odyssey
- Metroid Dread
- Fire Emblem Three Houses
- Astral Chain
- Breath of the Wild