I've played 2e DnD for ever as that was the preferred edition of my group of friends. There are a lot of kits, but or DM always shied away from them. He preferred to run the basic classes, and that worked for us very well. The thing to keep in mind with 2nd is that your characters perform specific narrow roles. You aren't Rambo or Heman. If you are a thief, you are a thief. If you are an illusionist, you are an illusionist. You're not going to be Raistlin or Drizzt. The kits are where you start being those types of characters, and that's why a lot of DMs didn't allow kits. They were just over powered for the most part. Also, the games differ a lot based on your DM's play style. My DM was in to a lot of role play and minimal combat. If this is your first time playing 2nd ed, I suggest a fighter or thief. Keep it simple. 2nd Ed is a lot of fun. Ravenloft is a great campaign.