The village is hugely desirable - but that will be reflected (massively!) in the price.
The further away you go from the village, and Wimbledon station, the more the price will drop (I believe).
The Kirkley Rd house will probably be a lower price because it's technically Merton Park rather than Wimbledon - although still a SW19 postcode, which is important. (At least for estate agents/house valuation!)
Taking each in turn:
Cecil Rd:
Nicely decorated, good layout and you have the two bathrooms. It's a quiet location, close to South Wimbledon tube station, and a road that only people who live there will be using.
Edith Rd:
Further away from central Wimbledon. Definitely not as valuable an area. That said, it looks good and you wouldn't have to do any work to it (other than cosmetic/changing things that aren't to your taste.). It also has 3 bathrooms - despite the estate agent saying only two. But, it's going to take you longer to get into Wimbledon, and although there is a train station nearby - Haydon's Road - that doesn't give you anything like the flexibility you'd have if you were near South Wimbledon tube or Wimbledon station/district line tube
Nelson Rd:
The house looks like it's nicely done inside, but I suspect it's smaller than the others. The location isn't bad, but it's west of South Wimbledon so, again, further away from Wimbledon and the Merton Park tram stop.
Kirkley Rd:
The best location of them all in terms of travel flexibility - close proximity to the tram, the tube (at South Wimbledon) and the tube/rail station at Wimbledon. It's the cheapest and, possibly, the one with most space - notwithstanding that the loft hasn't been converted, and you have only one bathroom.
The estate agent particulars are dubious though - no measurements for the rooms and very dodgy photos! That said, as I live in the area, I do know that as an Edwardian property, the proportions are likely to be better than the terraced options of the other houses.
In terms of the areas, none of them is really dodgy. But I would say that the further west you go, away from Wimbledon, they become less desirable.