They look like any other bomb??? you're not looking hard enough... Azurebombs are in an entirely different class of bomb. They use high-life GBMB to direct super-heated WARP along objects. no other type of bomb in the game does that. Plus, they can become EXTREMELY powerful. I specialize in these bombs. id:3339414 is my newest one. as you can see, it absolulty rips right through ALL of the BIZR, the mortal enemy of all Azurebombs. You might say that DRAY bombs are more powerful. and yeah, they are. but, they use DRAY(obviously) as the main engine of destruction. most bunkers and walls prohibit DRAY. also, in my oponion, DRAY "bombs" shouldn't even be considered bombs. they are more like "destructive devices". Although Azurebombs have recently peaked, they are still the strongest. thus, Azurebombs still reign supreme as the most destructive bomb class in TPT.
azure bombs are nothing compared to !set type all none
Explosive bombs use TNT and C4, and everithing in the Explosive section and, every bomb you listed is Explosive (I don't know why I'm capitalizing Explosive alot like it's a plot bit or item)
you could also count bombs which use GRVT or some other sort of gravity to propel superheated WARP along objects, though I think it would be worse without GBMB