I use the nickle wound CM on my darker guitars (such as a LP) to brighten them up a bit. I use the standard D'Addario XL's on my brighter guitars (strat).
I really like the curt Mangan strings, they last a long time for me and have good tone. I have not tried the NYXL's, but may in the future. The price is holding me back on the NYXL's.
In general strings are are very interesting and subjective topic. I know players who love Ernie Balls, but for me that last about a week. I used to use DR's almost exclusively, but then started getting tuning issues and had strings breaking. Since I have switched to CM And D'Addario, I rarely get broken strings.