as a guy that loves video games, plays guitar and loves rock...
i dislike both games. If you can play an instrument in real life there's no need for a game in which all you do is press buttons to the rhythm... and the equipment is a hassle.
i just dont like sports games because im not a sports fan, it just doesnt interest me. i mean this answer should prove its all opinion, people will like games like this depending on their lifestyle.