Machamp

I have 2 C/Cc...still powering up the 2nd - and they do the job.
I will keep trying for C/CP, but I powered up what I have before wasting more candy on nothing more than a chance of 1 out of 6.

The difference is not huge. Depending on the IVs and lvl i would power it. At least, thats what i did with my C/CC 98 IV - it was lvl 29 when i found it, so not a massive investment though.

Absolutely. Don't waste your time or valuable candy (or sanity) for a minute increase in efficiency.

Powering him up will cost up to 50 Machop candy.

Trying again will cost 125 Machop candy with only 1/6 chance of success. Some have tried (and failed) over 12 consecutive times!

Unless your stardust is very limited, POWER HIM UP!

I can tell you from having evolved over 14 since gen 2 and still no C/DP I 100% would power up C/CC I have 3 two at level 30 and one at level 33.5 they are fantastic