I would rather see mGBA with dynarec.
It looks really promising with full GB/GBC and GBA support and it even has antialiasing for audio, which gives every game such a crisp and clean sound.
If mGBA had dynarec to give it better performance, I'd choose it over gpsp anyday.
I agree, mGBA with dynarec would be superior to gpsp. But I thought it rather likely that dynarec for gpsp gets fixed than implemented in mGBA. Or do you know if dynarec for mGBA is planned in deed??