You can go as much in detail about this as you want. If your most desired type of character class didn't show up yet in any of the RPGs you played you may summarize here what makes it so original.
Personally i am not very sure what i like, but some combination between an archer and a mage might fit best the description. Probably best class there could be, despite the fact that i greatly enjoyed playing savage (an AoE melee class) in Rohan. It performs hilarious sword dances while fighting and it looks so amuzing, i just had to like it.
Before that i think i tried archer and mage in almost any RPG. In some RPGs (such as mu-online) i totally detested the archer class because it was all about sparkles.
Some RPGs got me confused on what to play more between an archer and a mage ...
The rogue class is also one that i greatly like but it's usually not fancy enough for me. The diablo 2 assassin is just amazing! That's where i greatly enjoyed playing the rogue more than anywhere else.
In some cases i didn't bother playing the rogue because they are either too hard to level, too expensive to get good armor set for them or both or there were even more issues ...
Alteil is pretty much well balanced. Sometimes you loose and sometimes the enemy wins.