spidey, im more of a travelling type.
currently having a 14-140mm. previously had the 14-42mm + 145-200mm, then realised that i have to keep changing lens sometimes.
maybe still amateur-ish, so cant really plan my shots well.
should be getting the highly-raved pancake 20mm for low-light situations for my next lens. guess this combination can last quite a while. or see if the rumored wide-angle zoom you mentioned is worthy.
for UWA, since oly n panny both is compatible, and usually for landscapes therefore using tripod, maybe can consider going for the oly since its cheaper. will the 2mm make any difference? guess not..
Well, traveling of course, one would wantto carry as little as possible, 14-140 is good in it strengths and well... Not so good in its weakness. Its not really amateur-ish, its more of a matter of preference, I went to HK a few years back ,carried and changed quite often, until I got lazy, I just took the 14-54 as I use that more often shooting various things, but when shooting candids, I'd prefer to stand further away and use my 50-200, others may do it differently though, but this is how I do it.
20mm low light is pretty good, for me, the 17mm to date serves my street and general shooting, then will get the rumored wide angle prime lens if its any good, and currently still waiting for a standard lens to use for videoing (cause sometimes I'm required to do so) as well as my day to day shooting, though if I want to go super light, I'd still slap back my 17mm.
2mm makes quite a big difference, its like currency, most of the time, people will go with US dollar (I have no idea why). Like in movies, you don't hear people saying "I want 50 million yen/rmb/sgd/rm/dong in my bank acc" they all usually if not alway say USD, like wise, for us to get to a common standard, we have to multiply by 2.
so a 2mm difference will in fact be a 4mm difference and that 4mm diff is quite a big diff. But 9-18 is somewhat more manageable than the 7-14, IMO anyway. I had the ZD 7-14 for 4/3, most of the time I'll zoom to about 9mm or 10mm or walk closer, but at times in tight corners, I do appreciate the 7mm, but if you're shooting landscapes on your travels, that 2mm MAY not be that important. I could be wrong but from my understanding to date, most of the landscape images I've seen do allow a couple of steps back
At the end of the day, most important is to enjoy the experience. Pictures are good, but they can be lost forever, so best is to enjoy the experience personally. Get what you can afford and make the most of it
As what NazgulKing and pchmj said, a UWA and 20mm is good enough, in my case, its not really because of what I shoot and how I choose to approach it, but of course, all our approach is different, we can give you advice, but ultimately the choice is yours, whether to go UWA and 20mm, or 14-140/150 and 20mm or other combinations.
My combination to date would be 17mm, the rumored standard zoom and wide angle prime. Whether or not I'll get a m43 tele lens, depends on what will be produced in the coming years