I have three bikes with disc brakes:
1 x tandem with front and rear discs (200mm rotors)
1 x tandem with front and rear rim brakes, plus a rear disc brake*
1 x cargo bike with front and rear discs (160mm rotors)
All the discs are cable actuated. On the cargo bike I sometimes get annoying disc rub on the front brake, but squeezing the lever a few times gently while riding usually fixes this (Avid BB5s)
That fully disc braked tandem brakes beautifully even with very heavy loads. Haven't put the rim braked tandem through that test yet...
I also have a Pashley folding bike with hub brakes: those are really the most weatherproof brakes ever. A bit more 'spongy' in feel than discs or rim brakes but they do stop you: guaranteed.
I have another folding bike with a rear coaster brake plus v-brake up front. Mixed results with that, as the rear is prone to locking and skidding...
The rest of the current fleet (not including kids' bikes or Mrs crowriver's bikes) are rim brakes: one on v-brakes, one on cantilever brakes, the rest on double pivots except for the BSA 20 which is side pull calliper old style on chromed steel rims...
Double pivots are good for road or audax style bikes, stopping power is fine and modulation to trim speed also good. Similarly cantilevers give an element of modulation which v-brakes don't really.
Not yet managed to wear out a rim, but that may be due to bike rotation and lack of a regular commute via bike...
* - Yes, a second tandem. It's t+1, similar to n+1 but with twice as many saddles and sets of cranks.