srsly I got same problem . In my opinion only this two clases are worth to play . Wizz will be probably better becouse he got many escapes freezes snares and huge dmg output . Monk is rly fun to play but definitely u will spend lot of money for repairs . In fact wizzard got same survival as monk teleport frost nova mirror images. I finished beta with all chars and monk is only class that take dmg but I still like him
I see your concerns. I want to help with your concerns!
Therefor, I go the webpage www.random.org/lists
Now, I put in Wizard and Monk, then I click randomize. It said monk! You should play monk first, not wizard.
Difficult, yes. Hard to say which one is better.. even more difficult.
From the beta (and public games) I can hardly point at a class which is "better", because everyone is rushing and the game is far too easy at this stage to actually measure the "skill" people have to play the beta.
I have the same problem though, only between Monk and Barbarian. Monk plays awesome, lovely abilities and effects, but the Barbarian just keeps on smashing everything in his way.. truly stunning as well.
Back to your problem, it really depends on what you like the most, Monk is melee, Wizard is ranged. Both classes have perfect mobility (if you pick up the right skills, which aren't in the beta yet, such as Teleport). I really thought that by playing the Beta, one class would come out as my favorite. the opposite is true, I like Monk and Barbarian a LOT and yes, even the Witch Doctor is amazing..
Good luck and you'll probably make a decision when the whole game is there