Yep, I'd use B3D + nSprite 2 as well. That way you achieve the same as in Blitzmax, but without the slowness.
Although for a 2D platformer I recon Blitz+ would be the best if you don't mind not having the odd special effect or two.
Although for a 2D platformer I recon Blitz+ would be the best if you don't mind not having the odd special effect or two.