BubbleFizz, I've been happy with using 3 different condoms (narrow, average and girthy); Durex (slim fit ones...not sure of their name though), Mates Natural and Mates King Size. My only complaint is that the lube used in the Durex ones tastes horrible; the lube in Mates tastes sweet. As for added lube, I found that Durex dries quickly and goes sticky which is horrible, but Liquid Silk is lovely. Regarding breakages, I've only had 2 split on me in the last 13 years, and think that was because I got dry but we kept going. Since then I always apply lube if the sex is prolonged and I get dry, and I always use a bit of lube on my outside to stop that snaggy feeling at the start of sex if my lips are dry.
If a condom splits after the man has ejaculated, my GUM clinic advised not to douche but to squeeze the cum out (imagine trying to have a poo) with your vaginal muscles. Then get a STI screen done. Even if he's not com inside you get screened.