If it is a bedroom amp the MG15 (I have one MG15MSII) will be more than enough !!
If it is for gigging, I'd go with the 50. Remember solid state amps are not as loud as there tube counterparts !!
My instructors page and www.studiotrax.net for all things recording.
my toons Brought to you by Dr BadGAS
my toons Brought to you by Dr BadGAS