It's really a matter of taste, it also matters how you look before cycle which people don't seem to get. If you take dbol and are obeast you'd look more obeast probably, if you take var you wouldn't see much. If youre skinny you'd probably bloat on dbol but it would look more like muscles, if you take var you'll shred up. If you look at muscle building potential regardless of how you look or want to look there's really no question what's the best, steroids such as anadrol, msten, superdrol, dmz, M1T and arguably oral tren which I have little information about but I do with injectible.
I've said this before countless times but for me msten and winstrol have been the favorites, I loved what it did to (me). This might be horrible choices for some people since they don't look like me, can't look like me because nobody will look the same as the other, or don't want to look like me.