Making a UA, please help me decide.

Since the creation of my Thunder Breaker I have been trying to decide for which Ultimate Adventurer I should make. After much thinking I have toned down my choices to only two classes which are both fairly easy to fund: hero and corsair. At first I was absolutely sure I was going to make a Hero. But when I heard about how late they reach their full strength, it made me rethink. ( 170, which i really doubt i am going to make before I quit ) So I wanted to search for another job. I ended up with corsair. there isn't a lot of mastery books, and I heard they are fairly easy to fund. They also reach full strength at only around level 140-150m which i'm pretty sure i'm going to reach.The only thing stopping me from making a corsair, is that sharks doesn't really help corsairs as much as hero,that they have less hp and slots, but i really don't want to make a normal adventurer as I already got my TB to 120. I am not making my 120 level for a TB go to waste.

Please help me decide..
Also: Please think of funding effectiveness, I will have about 1 bil to fund my character.

Thank you for your help.