Really? The Titans are 8-4 in the division the past two seasons. The last 4 meeting with the Colts are split 2-2 (2-1 Colts if you don't want to count week 17 last season). The total score of the last 4 meetings with the Colts is 69-63
Titans way (53-53, ditto). The Jags is similiar; 2-2 (but a larger score differene Jags way due to the 06 blow out).
The Jags record over the past two seasons is 19-13, the Titans is 18-14. Playoffs wise, it's 1-1, 0-1 respectively. I get why the Jags are considered a better team, because they are (I'd say one season further along than the Titans development wise), but the respect given between the two is night and day. The difference really isn't as apparent as many seem to suggest.
If Haynesworth is back in form, and in camp every indication suggests he is already, the Titans D is a legit #1 overall contender. Over the past 4 games, the Titans have proven they can handle the Colts. The Titans offense only upgraded in the offseason (a fact lost in the tired "they didn't get a WR in the 1st round AGAIN argument"). The loss on the DL is questionable given LaBoy and Odom were both role players on the same line as two pro bowlers. Don't be shocked if the AFC South is considered tough because of the Titans by season's end, not regardless of them.