Not sure what to play

[Striiker]

I wanted to weigh in on the XP penalty aspect with respect to grouping. I've only heard someone pass on inviting someone due to XP penalties a couple of times. These folks are few between and not worth worrying over. Most of the players on the server are here to have fun and relive the challenging days of old. Choose a class and race which you enjoy and which will fit your play style. I only ever chose a particular race for stats on live. I chose an Erudite Wizard (and later Enchanter) on the live servers because I got caught up in the high intelligence game. I chose Erudite for my enchanter here because of nostalgia. I chose human for my SK because it's not common and I preferred Qeynos as my home city. Same goes with my other classes. I never cared for Trolls or Ogres as a play character and so I chose differently. I ignored the usual reasons for choosing the large race and I am happy I did. I also didn't want to have to deal with faction in the main cities which I frequent.
As for class.. Well that's a harder question. If you prefer to solo a lot, then the necro was a good choice. You can fix faction in most cities through questing and killing certain mobs and you'll get XP and see different content so that's a plus. If you dislike the life of a necro there are plenty others to choose from. If you learn to play your class well, you should have no problem getting groups or at worst, start your own groups.