You don't have to stress over your 3 classes. It'll work
I just wanted to say to those who have not played yet, you don't have to get your class triad right the first time. The starting class is what matters, once you get to 10 you pick your 3rd class, but at any time you may be like meh, this SK isn't my vibe and change it. Then you might get to level 35 and have a new idea and then can change it up again and go kill things back at level 10.
Each triad is a new vibe, with a different play style and different pros and cons.
So far I have a
Dru/Monk/Shm at 50
War/Nec/Enc at 35
War/Pal/Brd at 25
Best part is, I can mix and match any of them for whatever role I want!
So don't worry about your planned triad being the best. It'll probably work. The only thing set in (temporary) stone is your starting Race and initial class. Just pick a primary class that feels like it jives with others and will be fun to you