Hiya and welcome to Guild Wars 2, First of all i would like to say from what i have read over the last 3 weeks EVERY class has pros and cons.
The trick is just to go with the flow and try a few classes and see what style you like. I first went with the Ele purely because i like casters, Ele are certainly not weak using staff and d/d they are pretty awsome but can be a little squishy at times.
The only reason i stopped playing Ele was becuase the amount of spells/skills they could use was or seemed to be vastly greater than other classes. So i rolled a Mesmer, not being into confusion and all that stuff i was very very suprised how great they was, i seemed to die a lot less often than an Ele and i think they are just as powerfull If you use them right.
I say go for the class your not thinking about let it suprise you…or just go Mesmer