I just finished my first Cannell novel, "Three Shirt Deal" and quite frankly I wasn't that impressed.
In the middle of "Course of Empire" by Flint and Wentworth, and it is very good. Good world building and its nice to see an alien species that actually seems alien in its approach, I haven't seen it this well done since Brin's Uplift Saga.
Rereading Pournelle's collected "Falkenberg's Legion" books. I read them 15+ years ago and remember them as being very good military sci-fi, they are better on the reread, now I would classify them as excellent.