so around 5'10", 198 lbs. if you'd like to do a recomp, like loosing 5 lbs of fat, and gaining 5 pounds of muscle, i'd look into something like havoc or hdrol. if you've got a pretty wide bone structure - meaning you don't look big at that height and weight, phera might be a better choice for you.
i'd never recommend mdrol for a beginner, because of PCT. havoc/hdrol if your pct isn't 100%, you should still recover pretty well, so long as you have a PCT in place, and its well thought out. IMO you should have a very good understanding of PCT before mdrol.
lets see what the experts have to say.