This is a wonderful question and I look forward to many answers. Walking into a church about 10 minutes before a service, is a great way to get the feel. As the church fills, does it fill with love? If I do not feel it, I do not return.
I like choirs, contemporary bands and a congregation that sings loud. I like pastors, priests, ministers, both male and female. I like reading scripture in church and for sure the Gospel. I like prayers I know and new ones to learn.
I do not think I have ever found a church that did not welcome me.
I like preaching outside under a big tree, and last week we had passerby's just stop to listen. So I would want a church that open to others.
And I do not mean this disrespectfully but I want my church to be like the old tv show "cheers". A bartender as a priest and a waitress as a deacon. I want everyone to know my name.
I think a person needs to evaluate themselves and find a church that has what they need, not what they want. I go to a second church where I get schooled by old wise priests. It is not necessarily fun, but I need it.
One last thing is diversity. I do not mean ethnic or racial. I mean age. You have got to have children running around, teenagers, newlyweds, parents all the way to great grand parents.
Again thank you for this, it helps to remind us what church should be like.