12/2 or 15/1.7, I can't decide...

Hi all,

At the moment I use a PEN E-PL7 body with the 14-42/3.5 zoom Kit plus the 45/1.8. I'm happy with the quality of the 45 but of course I still use the zoom as walk around lens and I noticed that I shoot most photos at 14mm or I switch to the 45.

So I'm divided between 2 possibilities:
- get the Olympus 12/2 which doesn't overlap with the kit, but I'm a bit afraid that going wider might result in a more limited use
- get the PanaLeica 15/1.7 which is faster and much closer to the focal length I use most, improving quality and leaving the zoom at home

I want to keep the bad small and light, so I have considered the 12-40 pro zoom, but it's out of the game because of size and weight, plus it will be unbalanced on my PEN and probably look also a bit weird...

So what would you say? Have you maybe got some pictures at 12 and 15 mm to compare?

Thanks in advance for all the advaices!