I went ranger because I thought I'd just sit back and plink while my mercs did everything. I kinda still do, but unless it is a tough fight I just melee instead, because fuck buying arrows. So stupid. Granted, they are cheap and they stack to 9999, but like most of us I hoard shit like potions so arrows are included in that.
I immediately picked cleric for my first merc because healing > all. Fuck those clerics are great. And in case you didn't know, I figured out that you can click the little sword icon near their name (the leftmost of the two swords) and change it to a shield which means they focus on defense instead of offense. At this point I just leave them on sword, but I could see maybe switching it for a really long endurance fight.
I picked warrior next for tanking, and they are pretty good at it. Then I went druid for extra heals and buffs, but honestly other than the buffs I have no idea what a druid actually does. I've only ever seen them nuke, but I thought there were dots? Maybe I'm wrong.
I've got a ways to go for 50 but I was intending to pick wizard next. Now I'm not so sure. Traps suck, and not needing mana for dps seems like an overall win for the rogue. Of course I've got a full set of the blue gear for a wizard, but by 50 I'd likely have much better anyway.
I'm trying to be a little more casual about it instead of racing to 50, but I'm also doing the EQ gamer thing and camping specific drops. Right now I've killed the Troll King at least 15 times and still haven't got his 10% drop bag. Focusing on bags has netted me a ton of other equipment, and more inventory space is always a good thing. But my bow sucks compared to my melee weapon and the rest of my gear, so gonna probably try to camp a purple if I can manage it.
I'm not sure I'd go ranger again if I were to start over (I'm not, I never liked alts), but I'm also not sure what else I would pick. I played SK my entire career in EQ (way longer than most people played) so I'm definitely not looking to tank anymore. Healers are out, because I'm not a chick. Managing mana isn't my bag, so it is between rogue and ranger. Meh.