neither. i am guessing that you are looking at the marshall mg and line 6 spider. at best, they are okay practice amps. but you can get better sounding equipment for the money.
save up for something better, that will make you last longer before wanting to sell it off. like a vox ad (valvetronix) or a roland cube. 100 bucks is not going to get you anything half decent, let alone vintage sounding