I’ve been to 16 of them. Below I rate them in order of enjoyment 1(best) to 16 (worst). A big part of the rating is personal. An example is 2007 Va. Beach. I was only able to attend on the last day, so I didn’t get nearly as much out of the convention and thus didn’t enjoy it as much. This list is still fluid in my mind, so I may rerate them again in the future.
1985 Indianapolis #9
1986 Sacramento
1987 Washington DC
1988 Dayton #13
1989 San Diego
1990 Miami
1991 St Louis #8
1992 Seattle
1993 Atlanta #7
1994 Omaha
1995 Albuquerque #10
1996 Va Beach #1
1997 Columbus
1998 Santa Clara
1999 Orlando
2000 Dallas #12
2001 Chicago #11
2002 Va Beach #5
2003 OK City #6
2004 Phoenix #3
2005 Atlanta #2
2006 Kansas City #4
2007 Anaheim #16
2008 Va Beach #14
2009 Columbus #15
2010 Phoenix
2011 Omaha