I posed this question to my Christian friend: of all the sects and denominations of your faith... Who's going to heaven? Obviously you think you are, but will Catholics? Presbyterian? Methodists? Etc.
He didn't have a good answer, but I suspect not many would.
**Is agnostic, but comes from a strong non-denom christian family.
The answer to this question is not "but OUR sect is the ONLY, REAL, TRUE one!!". Not if you read the bible. Jesus is very clear what the requirements for salvation are.
1) Salvation through faith in the Christ. Nothing else will get you in.
2*) Demonstration of that faith, through repentance and abstainment from sin. (And even general impropriety.)
So, if your denomination has some strange dogmatic practice, but preaches the core tenets above, Jesus says you get to go to heaven. (he will sort you out when you get there regardless.) This means Jesus cares precisely DICK about which church you attend, as long as it says "Only Jesus can get you into heaven, so read your bible to read his teachings, and let them instruct your life." Barring a few very outlandish sects that claim the christian moniker, this is pretty much all of them.
Now, I asterisked #2 there for an important reason. The second follows from the first, and is the identifier that you have indeed done the former. Jesus is pretty clear on this in the bible. Works do not save you, but yet, "By their fruits, you shall know them." This includes all the ordinary things, like how they conduct their speech, how they treat other people, etc. The premise being, that if you have accepted Jesus as the Christ in this fashion, he sends you the Holy Spirit, which then causes personality and mind changes on you, to give you a new nature. That nature causes you to act a certain way, which is very conspicuous to people that know what they are looking for. Simply emulating that behavior, without the acceptance of the Christ, will not get you into heaven.