There are plenty of Gods in the world today, so in essence it's a buyer's market. So, if you're in the market for a God (and a religion to go with it), I think there are some questions that you ought to ask yourself before you choose:
1: What will my God require of me? Forget the "Broken heart and contrite spirit" stuff and get to the nitty gritty. What do I have to do for my God? Most religions have at least some, "Thou shalt worship me" component to them. So, the purpose of the religion is to glorify God. This has always struck me as a little funny. I mean, this is God we're talking about, right? The supreme being? Why does this being feel he/she/incarnation/spirit/essence needs to be reassured? Isn't He/She/It secure in His/Her/Its godhood?
How much money am I going to have to give this God, and what will it be used for? How much is my God going to micro-manage my life? Will I be told what to wear? What to eat on certain days? What thoughts to think and when to think them? Whom to hate and whom to love?
2: What do I get out of this (I mean besides salvation, or lots of virgins, or nothingness)? For instance, in many Christian religions, the reward for a good life is to hang around heaven all day singing God's praises. That doesn't strike me as being much fun. I want to be able to date all the neat chicks and I'd like a Rolls and a Rolex.
I think that some tangible evidence of God's intentions and sincerity would also be helpful.
All I'm saying is, think before you commit yourself.