DC - Zero Gunner 2!?! (see PSP, below)
360 - Trigger Heart Excelcia
GC - Ikaruga
GBA - Vulkanon 2
PSP - Mars Matrix on CPS2PSP (otherwise would definitly have been DC No.1), although for PSP retail - Gradius Collection (playing Gradius 1)
DS... Nanostray (1)
PS2 Gradius V
PS3... what shooters? 1942 sux.
PS1 Einhander
Don't really dig 8 or 16 bit shooters as much (Graduis 1 excepted, as above), although the TG16 R-Type is awesome and continues to hand my ass to me on a plate...
EDIT - Really wish I had a modded PS2 to play some of the NTSC U & J games (ESP Galuda...DDP DOJ...)...

