I have posted about diving in aruba on this board- check out those posts.

Me- 10+ yrs diving, +/- 300 dives.

I would recommend Unique as a dive operator (fast boat, competent crew. I would not recommend Dive & Fly (slow boat- no amenities other than water is that an amenity? and even that was poorly done (don't even ask how you could do water poorly), divemaster totally absent (he was certifying 2 people- so what did he do for me?.

The Antilla is a shitty wreck, a boring freighter, whose story is better than the dive and the Perdinales is worse (2nd dive).

All the dive operators do a rotation of basically same sites weekly- do the dives in the south, skip the Antilla, and I'll have saved you $55.