wich one do you think is the more efficient and wich one do you prefer ?

I think the Texas Rig can be used more efficently in a wider variety of situations, but each rig has equal importance in bass fishing.

I think a t-rig will catch more fish but a c-rig will catch better quality of fish.

For fishing cover, a t-rig.

For fishing structure or over submerged weeds, a c-rig.

I like the T-Rig (weightless) but have been pretty succesful with a C-rigged lizard.  Love those c-rigs!

they both have their place and are excellent ways to catch fish.  personally i like the T-rig.

Different tools for different jobs.  A T-rig is better for fishing a particular piece of cover, and a C-rig is better for fishing deeper and covering water.

I think a t-rig will catch more fish but a c-rig will catch better quality of fish.

Ithink "ol Gambler hit the nail on the head!

I catch more fish Texas Rig.

They each have their own purpose.  Seasons and the type cover/structure of lake you fish will dictate what type of offerings to throw.  I know a c-rig gets swallowed more than a T-rig and causes more injury to the fish.  As for the size of catch.  If, If you used them equally, you won't find much of a difference in the catch size.    

Trigs are best for specific targets and will work at any water depth, but they excel in shallow water.

Crigs are great at any depth as well, but they cover more water than a Trig and are better in deeper water IMO.

Brad