109F4, Spit V, 109K4, N1k, pretty much in that order.
The Spit V was my fav go to a/c for furballs back in the day. Watching Leviathn fly it made me want to fly that way as well, get wrapped up into every fight possible, be very accurate with limited ammo, and have to really, really earn your landings, as you can't outrun anything, you have to kill everything in order to survive. The F4 is similar in a way, not quite as lethal in terms of a pure slugfest, but you have the speed and power to have a chance of extending from the odd thing. K4 iMO is the most survivable a/c to get into mob fights with, and come out with kills and being intact yourself the most often. The N1k is a lot like a Spit V, with more ammo and a little less simplicity.