I would go with the bucs. On average over the past 2 to 3 seasons, the bucs have gotten about 3 interceptions per game against the rams. They will shut down marshall faulk to the point where the rams will start airing it out into a good bucs secondary.
Even though the colts are playing the texans, the texans will still move the ball effectively against the colts. Indy will not win the game by stopping the texans, it will because of Manning and the colt offense.
togo with the colts, althought he bucs might get a pick or two, the rams are still going to get their share of points and yards. The texans offense is so inept, guarantee of 5 to 6 sacks, and half the points and yards of the rams.