When I was playing the 814 that I eventually bought, the strings (Elixers) were beat, so I had the store put on a set of strings of my liking - D'Addario EJ16's. About a month after I bought the guitar, it was time for a string change and I used the opportunity to see why people like the Elixers, so I bought a set of PB Nanowebs (light gauge) and tried them out. They sounded good to me, but I hated the slick feel. Also, within only a couple of weeks of regular playing, I noticed that the coating was coming off of the strings. They still sounded okay, but they looked like crap. I kept playing them for about a month, maybe 6 weeks before I though they were tired. At that point I started experimenting with different strings. I tried a set of Martin 80/20's, a set of DR Rare Earth, and then D'Addario EXP 16. I liked the sound and feel of the EXP's the best and have pretty much settled on them. I have used the EXP19 and am now using a set of EXP16's (since September). They still sound and play great, but I am getting ready for my next change and may use a set of EXP26's (11-52). I'm not sure if I will use them on my Taylor because I find that I tend to pull the high E off the edge of the fretboard very easily (grrrrrr!) with the light gauge strings, so I may put these on my Guild.
I have also purchased a couple of pack of John Pearse strings to try. I have heard very good things about them too. For now, I am a big fan of the D'Addario PB strings, and particularly the EXP's. They are coated strings, but unlike Elixers which are coated after the string is wound, D'Addario EXP's are coated before the strings are wound, so they don't have that slick feel. I just think that they sound great and they are my go-to strings. I didn't care for the Elixers. I think they sound really great, but no better than the D'Addarios and I don't like the way they feel. I also prefer Phosphor Bronze strings over 80/20's.
Jim