As far as numbered series, currently not many in the herd --
A 916ce from 2011 that is perfect in every way and sounds like no guitar I have owned before. I swear they poured a little musical pixie dust in the body of this thing...
A 912ce custom (Cocobolo/Engelmann) from 2003. 1-7/8" neck, clarity and focus, and surprisingly woody tone when close mic'd. Very cool guitar.
An 814c custom (Cocobolo/Sitka) from 2002 -- Taylorstock. Got it with a V neck on a whim, and have grown to really appreciate the comfort of that style neck. It's also my first grab recording guitar...
Then there's the others...:
A K65ce from 2006 (It just makes you giggle every time you play it);
A GS custom from 2008 (Cocobolo/Englemann) that sounds amazing and completely different from the 916ce, allowing them to live together in harmony;
A GT-6 Baritone from 2010 that quickly fit into my summertime show repertoire;
A T5-S1 Maple top in Cherryburst from 2005 that is, bar none, one of my favorite and most relied upon performance guitars.
A T5-12 S1 Maple top in Tobaccoburst from 2007 that I just picked this year when I wanted to do more 12 string songs but didn't want to subject the K65ce to excessive wear...;
A GS mini from 2011 because everybody needs a friend to travel with...
In the last 11-12 years, I've owned examples of every series from 300's up to 900's and every body shape/style except T3 and 12 frets. The ones that are in the herd now are ones that really made an impact on my ear or my playing, hence they stuck around. Life is very good...