Nemesis for me too.
I do like the Smiler (I find it not too rough besides the last couple of inversions where there's that jolt). If it were to receive any sort of track work then just sorting that bit out would do it for me. I'd be interested to see how it rides with lap bars, as it doesn't have the lazy 5-in-a-row that Sik has I don't think it'd be that bad on the thighs and would remove all the head bashing - and remove the disgusting smelling pads that you struggle to keep your face from touching for the entire ride.
The queueline doesn't bother me that much as I usually go Single Rider, although on the occasion I have been in the full queue for an hour it's not the most pleasant. However being so close to the track passing above is nice I suppose.
I like or dislike riding a coaster based on how it rides rather than the theming or, for example, if the station building has had a million quid of Universal Rockwork thrown at it, or just concrete blocks. When ranking coasters, the ride comes first and then if the theming has had an impact and made it a better ride, that may help pick a final position.
I'm a fan of SAW but that's probably more to do with the theming than the coaster (although it fits the theme that one of Jigsaw's devices is going to be rough). Yes I know I just said I don't pick coasters based on theme but, well, it's my favourite horror film franchise.