Some of my favorite fights are the ones where my opponents catch me under less than ideal conditions, usually shortly after I up or on climbout.
One of my favorites was one day a couple months ago I was a minute or two off the runway in a P47 D11 when a pair of P47s (one 47M one 47D11) came in about 6k alt. I started heading away from them to build some E and they came down. What ensued was a very tactical fight, at least from my end, where the D11 was attacking me somewhat aggressively and the M was pretty much making sure I couldn't get away and keeping me low E and taking the occasional swipe at me himself. It reminded me a lot of watching a hawk teaching its baby to hunt. I eventually wound up getting nailed, but I felt I'd made them work for it a fair bit, and also felt like I'd had a couple chances that I blew. The M was LilMak, the D11 was a squaddie of his.
Anybody who actually fights at 20k plus is also an enjoyable fight for me, although those are exceedingly rare.
Wiley.