The fonts for all logos are very nice, but my favorites are #48 and #44.
Some thoughts: The blue color in #48 is perhaps a bit too dark and does not feel like it matches the text. If possible, it would be also be interesting to see a version of #44 where the C in the symbol is behind the P, i.e. opposite like it is right now.
I also thought it would be interesting to see the P in the symbol of #48 wihtout a hard corner (top left corner of the p) and instead more rounded to match the C.