I personally think the training I recieved at a part 141 school was top notch, i ended up with all my ratings up to CFI (Comm, Multi IFR) with 255 hours, not a bad deal. For me the stricter environment of 141 is a plus, some dont like it, but IMO 141 all the way up to Commercial, then part 61 for CFI, II and MEI.
I did my CFI part 141 and that was a mistake, too much repetitiveness, how many time do I really need to recite learning theory....