I'm a theist, and I still think that trying to avoid hell is a lousy reason for becoming one. Sorry, I'm feeling blunt today.
Real faith doesn't spring from some faint-hearted and poorly reasoned attempt to avoid hell by appeasing God through claiming to believe in something you've never experienced and showing up at a church on Sunday. That isn't real faith- it's going through the motions, and with selfish motives.
You can't force real faith in God by reasoning that "Church is better than hell." The minister last week at church actually saw a bumper sticker that said this (with a church name mentioned!
) and commented that lots of things are better than hell- including root canals. We should worship God for a better reason than that- the positive changes wrought in our lives, the gift of life and love He's given us.
Some people are agnostic- they're seeking God, but don't feel like they've experienced Him yet. I don't think this seeking process is bad, or that they should blindly rush into a church or religion. Good things come out of the seeking process- "Seek and you shall find." Others are atheist, and currently believe God doesn't exist- so the message about hell is a non-issue for them (as are folks who do believe in God and/or have a religion, but it doesn't include a belief in hell). I don't think hedging your bets by "going along" with the belief-in-God-thing makes any difference to people's salvation- God knows people's hearts, their true thoughts and feelings. And people can't force themselves to believe in something they don't.
In my opinion, it is better to share love with everyone of every religion (and non-religion). At worst, you make people's lives better. At best, they wonder where that love came from, and perhaps come to their own experience of the Love from which all love springs- God.