Go watch Merrimans sacks or big plays and then go watch Ware's... You will find out that Merriman is very often in a two point stance, a yard off the ball and gets either a running start at the tackle or stunts with another LB that comes to play end. Also a lot of his sacks are from the left side, not the right and then even after that a lot of them happen when the Qb is pressured and flushed up or out of the pocket creating the opportunity. I mean the guy plays with a lot of hussle and will sacrifice his body, but Ware and Merriman are not doing the same thing and have different factors in their opportunities. Many of Merriman's sacks or plays come when they are try to pull a guard or TE to block him or sending a RB his way and he is too quick and has a running start to easily get around them.
Ware's plays and sacks are half the time out of a four point stance, on the LOS, directly beating the LT and making a play... most of the time with no other pressure, other than an rare contain pressure from Ellis on the other side.
San Diego gets a much bigger push up the middle from Williams and co.
I just don't see how you can make the statement that Merriman is an obviously better player... maybe Ware needs to dance and scream more after every play so he gets more attention