PowerAmp and Jet Audio are the two best media players I have found. I prefer PowerAmp, but it doesn't seem to scan all of my music anymore. I'm not sure why.
Also, don't confuse "options" with "confusing." I know coming from iOS, the amount of options that you have with Android can be a little bit overwhelming, but really, Android is no more complicated than you make it. You can spend hours setting up homescreens and customizing system fonts and the like (which are not options that you have with iOS, at least not nearly to the same degree as with Android) but you don't have to. Android is more of a legitimate operating system compared to iOS, which is really little more than a glorified app launcher.