I can't really cover anything else gameplay wise since it's all pretty much been covered by the responses before mine. However, if you want to have more fun playing, I'd go with the HUcaseal. HUnewearl was the first character I ever played in Phantasy Star Online for the Dreamcast, and to be quite honest, she really got boring the more I played her. I actually did play the game with friends in the same room at the time, and she really never felt like anything more than a support character. One of my buddies actually played as a HUmar and he was racking up significantly more damage than I was, which I found to be disheartening.
Now the HUcaseal is a character I actually enjoy playing, and would argue is the best Hunter to play as in this game. Great ATP, great ATA for a Hunter, nice EVP, and really awesome weapon animations. She's kinda like a more badass HUcast that actually has the ATA to hit things. Of course the fact that she has traps is a bonus as well. I will admit that she's kind of a pain to solo with, but I'd argue that all of the Hunters are. If you really care about making a character you want to solo with, you should skip the HUnewearl entirely and go with a RAmarl instead.
Just my two cents, but you will probably have a more fun and enjoyable experience as a Hucaseal.