I just recently started with MWO (no previous MW exposure) and I'm amazed how complex the game is. It's a true "thinking's person shooter". I like the pace of the game, I like all the different tech's. The mechs have spot on durability - they allow for a mistake now and then but make too many and you're dead.
That being said I need your help. I'm about to buy my first mech. I did my homework to spend a lot of time on forums to learn a few things. I played with the trial mechs to get a taste of each class (although I did very poorly with assaults - I think I'm missing something there). I decided to go for medium mechs. I also liked lights but they seem to be too important to the match to give it into hands of an inexperienced pilot.

I'd like to have 3 different variants of a mech that still allow me to play very unique styles. I need your advice (possibly with a build link - I have no ambitions to design my own builds atm) as to which mech is the best for me to buy and still be able to play these 3 different play styles (with each variant dedicated to one):
1) I like LRM support. So one variant should allow me to play a LRM support role with some small energy weapons for defense and an occasional skirmish. I really like the Kintaro trial mech and I would like to see something like that maybe with a NARC or TAG.
2) The second variant should allow me to play a (jump)sniper build or simply somethign that can shoot over long distances. That's something I didn't really try but I came to situations when I was looking at a valley full of enemy mechs and I wished I had long range weapons.

3) I'm not really decided about the third variant. It could be a light hunter or a simple brawler. I'll leave this open and hopefully it will allow for various suggestions even mech-wise.
Please keep in mind that it's all mechs for a newbie so it doesn't have to be the best and most expensive (to buy and to run) build out there. Like I said - I had great fun with the trial Kintaro and I heard trials were very weak in terms of optimization. If you however feel that a specific variant is really good (and it's just expensive or hard to master), mention it and just hint that it's expensive/difficult to master or whatever. The goal is for me to have a clear path on which 3 mech variants to buy and how to equip them so that I can concetrate on the above playstyles, have fun and still progress towards my basic & elite skills.
Thanks so much, guys!