How likely is it that you will become an ATPL or is it just a general aim?
If you want to gain an ATPL and become a Commercial pilot above everything else I would try to find out what airlines would require from you. As others have said, talk to other pilots with the same aim or with commercial experience; can you get a Class 1 medical? Does it make a difference how quickly you went solo, gained your PPL, how fast can you gain P1 hours? Should you train where there is ATC?
If it is just a general aim then convenience and enjoying the club/type of aircraft you fly has more importance.