What's Your Favourite Third Party Grading Company? (T.p.g.)

Poll Question
Here's an interesting one for all collectors that enjoy purchasing slabbed (Third Party Graded)coins. Ever wonder which one's are the most cherished? Even if you don't purchase graded coins, but have a preference for one as a result of experience or knowledge and would like to cast a vote, please do so.
All North American Third Party Grading Company's use the Sheldon 70 point grading system, however, as you know grading is "subjective".
Below you'll find a list of the 11 best known, most used and most respected. They are not in any order, classification or popularity so please vote according to your preference!

Glenn Pinto

Poll Choices
 >N.G.C.
 >S.E.G.S.
 >A.C.G.
 >C.C.C.S.
 >P.C.G.S.
 >I.C.G.
 >A.N.A.C.S.
 >I.C.C.S.
 >N.T.C.
 >P.C.I.
 >S.G.S.