pbeyer
Player Valuation: £6m
The f1/7 aperture will give you a lot more scope for street photography - you'll get faster shutter speeds wide open. Both lenses are very similar length so there is no real issue with either. One thing to consider though, is that the Sigma has been discontinued and may be more difficult to find a good one of, whereas the Pano is currently still in production.
Bilbo.
Cheers Bilbo, I've been leaning towards the Pano because of that aperture as well.
Didn't realize I linked the discontinued version of the sigma, they have a new one out that is more aesthetically pleasing.
Olympus also just started out a 25mm but that comes at a steeper price so think I'm gonna go with the Panasonic one.