I've used both, including more than one variety of red dot finder and Telrad. Didn't enjoy the Telrad too much or the other dot finders - if you're star-hopping to fainter visual targets it really helps to be able to see the fainter stars to keep your bearings, even a 30mm finder will do, though I have gone up to a 50mm finder. This is especially true if you have any light pollution and your naked-eye stars are at all restricted, then locating an object with a Telrad can be pretty tough. With the 50mm finder (on a 16" Dob) I can see all the stars on
Uranometria, and so hop to all sorts of targets and confirm where I am in relation to reference stars. I wouldn't have though you'd need a larger finder
.
But each to their own, it's clear that lots of people love the 1x finders too!