Re: Quintesential M43 lenses
I'd rebuy the P 42.5/1.7 & O 75/1.8, instantly, at least as long as my GX850 and/or GM1 are working alright. I don't use M4/3 as my sole/primary system anymore but if I was doing so I'd add the P 20/1.7 and/or PL25/1.4 II to that list... (still have the former, probably gifting away the latter) As much as I like it, I'm not sure I'd hunt for another refurb deal on the O 12/2, I've kept it for video for now but if I was starting anew I might get Laowa's 6/2 and 10/2 instead of the 7.5/2 I've got and the Oly 12/2.
I obviously like my primes, I don't miss my PL8-18 since I'm shooting a FF 17-28, if I didn't have the FF system I'm not sure if I'd rebuy the PL8-18 or if I'd stay with a slimmer system. The O 9-18 & P 35-100 f4-5.6 make for a pretty neat and underrated combo you can't put together on other systems (Sony 10-20/4 G looks sweet but the E mount teles... ehh). The P 35-100/2.8 is the other favorite I'm not sure whether I'd rebuy or not. I like the primes better in general, but the zoom is clutch for some events.
I guess P 35-100 + 56/1.4 would make sense if I wanted to slim things down to 2 teles, tho I'd miss the 42.5/1.7's MFD and max magnification! Kinda depends on the other primes if it were my primary system (eg 10+20+42.5 vs 12+25+56). I guess it says a lot about the system that my shortlist is basically 3-4 Panas, 1-2 Olys, and 2-3 third party lenses (from 2 different brands). Wouldn't be the same without that mix! Laowa has been huge for UWA primes and Pana never made a really small UWA zoom or a longer tele prime even tho they're my go to small choice at other FLs.
Edit: Oops, how could I forget the Samyang 7.5/3.5 fisheye... Sometimes I leave it behind, sometimes I bring it and don't even use it, but whenever I do it's still fun to see what I can get with it, and on a second body there's no stress to switch it out. APS-C has some similar FEs but all the FF ones are super chunky and un-appealing.