Your choice should not be based on location but quality of training. However do not think it is practical to travel 1.45 each way every day. Don't forget that 1.45 could easily become 2.30. If you did end up going to Aeroes you would really need accommodation in the Gloucester area or which ever of their bases you ended up at.
Stapleford used to have a very good reputation and was a school I considered but that was over 20 years ago so if you are happy with what you have seen of them and are being told by recent ex students they are still instructing to a high standard the decision is easy.
I ended up at Halfpenny Green with Chris Cain for my BCPL and instructor rating. It was a difficult choice to make as there were plenty of good options available at the time but he had a quality reputation, was competitively priced and the deciding factor was that my wife to be lived 30 minutes up the road and provided free accomodation.