That is what I usually try to do, but the first guy ends up climbing while Im fighting off the wingman, now I have two badguys co-alt 
EDIT:: this is when I usually WEP up dive out and put distance between me and them, then the runstang is thrown out there
Fighting 2v1 is really a completely different topic. But since it's your thread, and you're the one asking...
In a 2v1, you need to capitalize on weakness, concentrate on the biggest threat, but not forget about the other guy either. Apply what pressure you can, when you can. Shoot when you can (and don't miss), but don't force the shot or commit to one for too long. Keep an eye on the guy in front of you, but pay close attention to the one behind you.
Also, use all of the information you have at your disposal.
A few tips-
Don't let the 2v1 turn into a 3v1. 2v1's are hard. 3v1's are really, really, really hard. That means you need to separate the fight from the crowd. Use the height you have to drag the fight to a "private" area, or possibly towards help.
Put them together. Get them into approximately the same area in relation to you. Both behind you and to the right, for example. Don't try to fight them if they're separated widely, if you can help it. That allows you to at least begin the fight as if it was a 1v1.
Don't let them dictate when the fight starts, exactly. Are they going to catch you, and force you to turn? If so, realize it, and reverse on them when you're ready- don't wait until they're so close you have no choice.
Make them think you want to run away and not fight. That seems to help convince them to keep they're speed up, which will give you a quick turning advantage (brief, though).
Make your shots count, and end the fight as quickly as possible. Mentally, I think it helps you, and hurts "them", if you can quickly kill one of them (even beyond the fact that it's now 1v1). Make it look easy, don't make it look lucky... What's the second guy thinking at that point? If you can get an edge that way, that's good. It may be 1v1 now, but it sure isn't starting out as an "even", equal position 1v1...
When you get into it, watch for the dangerous one, and avoid him. Also watch for one to give you a shot. Take it if you can, but if not, forget it and dodge the other guy.
Turn when you need to, and dodge when you need to, but don't overdo it. It burns E. Fly as smooth as you can, and make your moves/dodges subtle when you can. I always assume that even though they're both a team, they're also competing for my scalp. That makes them likely to burn E with tight turns and quick reversals.
Here's an example of some of that. In this film you don't see three key bits of information that one pilot gave me. The P47M made a pass on me while I was in a fight about 3 minutes before this film started. In doing so, he missed me on what I thought was an easy shot. He also pulled hard and awkwardly for that shot, burning E, and then zoomed out a long way (3.5-4K) before reversing back. Those things gave me an immediate "read" on him, but I was low, slow, and covered in red. I had to extend. In doing so (with him still following), I picked up another P47.
So I drag them out. This keeps it a 2v1, puts them close to each other behind me, and makes them think I want to run away. A friendly GV asks me to turn back to him for help. I'm confident though (sometimes suicidally, hehe)(plus, he called me minuteman...). I then reverse before they catch me (although the second one was shooting at me from 1k out (which gave me some info on him, too).
As I turn back, I see the more "unknown" pilot (P47-25) will miss his shot, and the M looks like he'll give me a shot so I go after him. I quickly realize I won't catch him, and can't afford to hang myself out. I'm pretty sure the -25 is closing from my right, and I'm scared.
I'm going to use some of my info here... How far will the M probably zoom? If he doesn't, and turns back quickly, how likely is he to perfectly execute the reversal, and how likely to hit me with that shot? My info from earlier leads me to believe that the -25 is the biggest threat
right now, and he's closing in... So I take a quick shot on the M (a little damage on him is better than none, even a few pings may lead him to be a bit hesitant or intimidated, hopefully) and pull off to look for the -25.
Guess what? I screwed up... I misread the P47M's E-state... The M is quickly around for a shot- but misses. What info does this give me? Info on his E-state (he's not holding a ton), his frame of mind (he's being aggressive, burning E for the shot), he missed again (when I was extremely vulnerable) and he's now out of position for a few seconds following his shot (I can afford to spend a few seconds on the -25...). Take the shot when I can (don't miss!), but don't spend too long on it (be ready to reacquire the M). The 25 goes down, and the M is now vulnerable, as long as I pressure him enough that he can't straighten out and extend (I can't give him any "room", and I can't let the fight drag out too long).
In addition to all that, luck helps a whole lot! You never really know what's in store, so hopefully they'll miss a shot or two. You can't afford to miss (or get hit), though.
http://www.4shared.com/file/252466927/b755b31f/Jugs_2v1_at_end_0808.html
