As Shar has said, HBK-4J is a beast on the field and can run both ER LL spam and LRM boatting, as it's hunch comes off without any missiles! (like there will be no hunch). The 4SP and 4P also are quite godly, as 4P has one of the best cooling systems even with 9 ML, and 4SP has a powerful SRM system too. The 4H and the GI are much harder to use though so I suggest the 4P and then the 4SP for more brawling gameplay (similar to 4G) or 4J for LRM support if you so desire. (4J is a better bet since you asked for an LRM support, get that then the 4P).
TDR has been very strong lately due to it's godlike quirks. TDR-9S stands for it's name, spewing many bolts of lightning or ER PPCs. TDR-5SS has also been good with powerhouse MPL in which it can spray and pray more alpha than a boomjager, plus cooldown faster, and outrange any AC20. The TDR-9SE is also a decent jump brawler too, which can get in faces and destroy people too.
Yeah Timbers are pretty good, though since you bought a Hunchie already go with the IS factions and wreck face there!

Hope I helped and remember:
http://mwo.smurfy-net.de/mechlab Smurfy will save you tons of time.
And yes as @Ward Serpentine has said, 3 variants to master a chassis, giving that all important module slot (and a sense of awesomeness) for CW! I myself recommend the 4J and then the 4P (which if you'd desire too you can run as a ER PPC boat, though I recommend packing ML). The 4SP has similarities to 4G/4P, except it has two hunches.
Oh, and a tip to building your beautiful Hunchies is to put your huge torso (Right side iirc) with 46 armor front and 2 armor back, since your backside is hard to hit. You gotta torso twist. Follow that one guy from TheB33f's vid: (mid way through the vid and you can see how CW is like a tiny bit, exact timing of the quote is 2:35ish):
A more serious vid (credit to Kon for filming):
Edited by luxebo, 23 December 2014 - 12:48 AM.