Well I have a STTNG, a TOM, a WH2O, a TZ, a babypac and an IJ. I would sort them as follows, knowing that they are all very good and entertaining ( the babypac is an acquired taste ):
1. IJ
2. TZ
3. STTNG
4. Babypac
5. WH2O
6. TOM
Don’t know if that helps, and yes the STTNG is a pain to maintain, so don’t buy if you don’t have a pro nearby ready to jump in once awhile. ( so is the TOM btw, I would say the IJ, the TZ, WH2O are more stable, the babypac is a class on itself )
If you jump, 2 mods really add to the game: the lazers and the dmdcolor
Cheers.