They're all mediocre. If you're a complete newfag with very limited pool of CEs, go for Dance With Rounds as you don't really have any other close free options this year. 20% NP gain is pretty good and star gather ain't too shabby since a good quick or art crits help you gain NP even faster.>Detective Edmond
Meh. One Summer from CCC we just had is more useful due to 50% charge. There will also be Traces of Christmas at the end of the year which is the best free quick CE.>Foresight and Profoundness
Sure hit is pretty niche. And you can wait till Summer re-run for Water shine or Halloween re-run for Freezing Bear which gives pierce invinc.>Riot of Cherry Blossoms
Poor man's Another Ending. You can just wait till summer to get the JK Fox CE instead, which is more useful.>Mentor and I
The obligatory filler slap dash mix of random combination buffs. There'll be plenty of these types of CEs from events anyway.