The best Waffen SS Divisions were Liebstandarte and Das Reich, along with Totenkopf. In other words the 3 divisions that made up the II SS Panzer Korps. Up until mid 1944 they could be considered as elite status divisions and were well regarded by German commanders as 'fire brigade' formations. In other words, formations that could be reliably used to plug holes and prevent Soviet breakthroughs.
The Totenkopf were certainly not just fancy concentration camp guards. As part of II SS Panzer Korps they formed the main offensive wedge of 4th Panzerarmee at Kursk, and along with the other two SS divisions achieved the furthest penetration of any German formation. This was mainly due to the tactics of Hausser but make no mistake, Totenkopf in 1943 were as good as any other Panzer Division in the German Army and better than a good many of them.
Many of the other Waffen SS units you mentioned were formed towards the end of the 3rd Reich and were not of the same quality as the big 3. Hitlerjugend for example was formed by transferring a core of veteran NCO's from Liebstandarte to look after largely green troops, most of them Hitler Youth, hence the name. The Hitlerjugend did actually fight very well, but it was no elite formation.
Totenkopf fought very well at Kursk. Not bad for a "bunch of camp thugs".