I left off last night at a 297, so i'm getting close. I just got back into Destiny about a week ago and where I had left off I was a 28 so it's been an uphill battle trying to get my Titan back up to elite level. It's coming along, a lot of Crucible and some friends of mine have carried me through tougher strikes.
I'm still in search of a nice trusty Hand Cannon which has been my go-to since the beginning, although i'm taking a bit more liking to Scout Rifles since it's what i've had to use here lately.
The hand cannons available today aren't what you likely remember from your previous stint in the game. They've undergone some pretty massive changes, including nerfs to range, damage dropoff, and carried ammo capacity. Bungie actually over-nerfed them pretty badly when TTK came out, but a couple of rebalances later and they're a bit closer to what they were, but still not quite "there" yet. Best exotic HC's are easily Hawkmoon or (if you're a Hunter) Ace of Spades.
Personally, I've been a Scout Rifle user since about 3 days into the game. About halfway between Taken King and the April Update, they became the meta in the crucible too, with most users now using the MIDA Multitool (and for good reason, it's a damn fine weapon). A good scout rifle is pretty much a requirement for the King's Fall raid too, since 3 of the 4 boss fights take place at distances outside AR & HC range. Best exotic SR is the MIDA Multitool, followed by the Jade Rabbit and the Tlaloc for Warlocks. (Not counting the Touch of Malice, because while it is absolutely DOMINATING, it's only really feasible to use in 2 segments of the King's Fall raid, and that's about it).
A user on Reddit went through and posted a breakdown of all available weapons from the vendors, and then followed that up with a breakdown of which of those weapons he would recommend. They're lengthy (full of details and stats), but well worth your time to read through, so you can hopefully find something that will fit your playstyle.
At 297, one of the most loot-lucrative activities you could be doing is the Court of Oryx on the dreadnaught, and if you have 2 friends who are willing to carry you, the Challenge of Elders (will cost you 100 glimmer). At 297 you will die A LOT in Challenge, but if you can complete one run with a team score of over 30,000 (fairly easy to accomplish, even under-leveled) then you'll get a guaranteed legendary weapon drop. If you can rack up a cumulative score of 90,000 (which can be done in multiple playthroughs), then you'll get a guaranteed legendary armor piece to drop. These drops are all guaranteed to be at least at your current light level, and can go up to 5-10 points above.