141 is cookie cutter, it's the safest bet if you don't want to shop for a individual CFI or put in the time to find the best schools and options, 141 take some guess work out.
61 is VERY customizable to the student and any specialized training, this is great if you have a good higher time CFI and/or are training in tailwheel, gliders, seaplanes etc. 61 can offer the highest level of training custom tailored to exactly the type of flying the student plans on doing, draw back is it much more depends on your individual CFI.
So, if you can find a good CFI, or know where to ask to find a good CFI, go 61.
If you don't want to deal with finding a good CFI and are OK with generic training, basically just want to get er' done, 141.
* I should add, I did my PPL (In a tailwheel) SEL&SES, IFR, CPL SES & SEL, CFI (FSDO ride) and ME ATP, all part 61, also all the instruction I have given has been 61 due to the nature of the clients I had.