Crabbow +3 (+15% to affected stats rounded)
Att: 146
Acc: 190
Critical: 135

Verdant Bow (stats as stated)
Att:128
Acc: 182
Crit: 121

Not really even a comparison between the high tier HQ Crab bow and the Dungeon Drop, crab bow just owns it.

Issue is you need to +2/3 Crab Bow to beat out the Uldah Bow and V.Bow. Which tends to be somewhat expensive.