It depends what your end goal is.
If you only intend to do a PPL, then a smallish flying club is best. You will get to know other recreational pilots, get exposed to interesting small aircraft types, get a better over-all picture of recreational aviation and most importantly it will stoke a passion for aviation. If you only intend to fly privately, then enjoyment should only be second to safety.
If you intend to do a CPL and make a career out of aviation, then one of the bigger professional flight schools, such as AIFA or 43, is better. The bigger professional flight schools put more emphasis on procedural flying, knowledge of the CAT's, CAR's, AIP's, AWOPs etc. From day one, the emphasis is on professionalism. Even if you intend to do "bush flying" once finished, all companies will look for this professionalism.
(Disclaimer, I'm not saying that small flying clubs can't, or aren't professional, I'm just saying that it is a different environment.)