Recs.
Updated
SpecsUpdate
Pros
Pro Many plugins standard
Has many plugins out of the box, e.g. internet "radio"streams, equaliser, sprectrum analyser, bookmarks, audio converter, broadcast, playlists, lyrics for the song you're playing, and more. It's the full music enjoyment experience. If you like minimalistic, Sayonara can do that too.
Cons
Con Playlist driven play back
If you install Sayonara, hook it up with your music directory, and want to have it play by clicking a music file and let you surprise yourself with its shuffle... it won't. It will play that double clicked song, but then just plain stop untill you double click that next one. To have it just play through your collection, you first have to make a playlist, and only then let Sayonara play that (randomly). No deal breaker, but certainly an non-intuitive hassle preventing "click that in my library, play and don't bother me no more".
Con Dynamic playback
Sayonara works with a dynamic mode shuffle method, that quite often eliminates any surprises and comes with "the same" suggestions when your collection is smaller. It can be switched off though (bottom left switches, under your playlist) if you don't like it. All the options will require you to "look into it" though, since it is somewhat confusing...