I never attended another church per se, as I didn't see the need for an institution, ritual or history as prove of the superiority of one belief over another. Picking another flavour of god belief seemed too easy and faith is too close to wishful thinking IMO
I did talk with a variety of people who had different beliefs about god and spirituality. It seemed most were looking for the same thing but were taking different roads to it. Since none could prove their claim more than any other, all seemed as valid as the next and paradoxically, as irrelevant. Anyone who wants me to agree with their religious views usually isn't open to hearing about mine, and that tells me a lot.