I've always liked Sum 41. For me SBM was a step back in the right direction. UH felt a bit weak for me overall (or rather, didn't have the lasting power as I've kinda grown out of that pop punk and grown with Sum 41 so for them to step back didn't sit as well with me). There are some great tunes on there but too much repetition (three or more songs have the same Chorus chord progression) and lifting from other bands (GD, MCR, b182).
I'll always give them a go and I'm excited to see what the new album will sound like. That being said I think I'm REALLY stoked for the new Gob album.