I remember what one of my poly lecturers told me ... the chap
was from sri lanka, and the advisor to the school's buddhist
society.
he said that it really doesn't matter which religion you stick
to, as long as you go with it whole heartedly, cos all religions
are inherently "good", and as long as you are good, the karma you
accrue would also be "good" ....
just don't stick to something half heartedly for form's sake
...
I think there are parallels in christianity too ... remember
reading it ....
revelation 3.16
"so, because you are lukewarm, and neither cold nor hot, I am
about to spit you out of my mouth"
I have to admit that I'm kind of lukewarm ....
I have to admit that I started going to mass simply because my
ex wanted me to ....
I guess that's why for the past couple of years, I felt sort of
"abandoned" by both sides ... 
sometimes, whenever I think of where I will eventually end up, I
hear the song highway to hell playing in my head.