Confession: I have a frying pan obsession. Actually, it's a frying obsession. Nevertheless, my thoughts overall:
Qualities of a good frying pan (in no particular order):
1) Generally non-stick
2) Nesting, or stackable in some way
3) Light-ish (cast iron is a no-go for me)
4) Durable-ish (I've had
5) Has a lip that can facilitate flipping of bannock.
I've had at least a dozen, but here are some more recent non-stick ones in the picture below, from largest to smallest.
a) GSI Bugaboo (30 cm)
b) Trangia (large one)
c) MSR
d) Primus (now discontinued, I believe)
e) Trangia (smaller one)


I've also have the Fry-Bake, Trangia non-stick and stainless steel from MSR. I'm not a huge fan of the ones that aren't non-stick, eventually (even with lots of oil) you'll get something that sticks really badly.
I don't like the MSR and Primus ones - the lip is too high and too steep. They're almost pots. It's hard to get a spatula under a thin piece of bannock or worse yet a pancake. I cut a thin kitchen cutting board to size, in order to protect the bottom (and to use as a pasta strainer/cutting board).

The Trangia ones are a bit better, the lip is thinner. Also, there's a cutting board that nests with them. But I still dislike the 90-degree lip. The other issue with these pans is that you need to use a pot gripper - this will scratch the non-stick coating on the lip (see below). Not a huge deal, doesn't really affect the performance, but a bit of a peeve.

My hands-down favourite is the GSI bugaboo. I use the 20-cm for 1-2 people, and the 30-cm for 3+ people. There are plates that nest perfectly into the pot, Plates are out there for both sizes, harder to find plates that fit for the 20-cm pan. The regular plate fits perfectly for the 30-cm frying pan. The lip is nicely shaped for flipping. Quite durable. Reasonably light-weight - any lighter, I think you'd have serious hot-spots in the bottom (there are some now, but not bad).

https://www.mec.ca/en/product/5035-557/Bugaboo-30cm-Frypan
https://www.mec.ca/en/product/4007-020/Cascadian-Plate
Cheers
Marko