So here are some questions for your denomination (whatever it is):
I was raised Methodist. I later joined a Presbyterian church. Currently I am a member of a Unitarian Universalist church.
The
Presbyterians are very similar to the Methodists. The main differences seem to be church history and how the church is governed. There is some variety between Presbyterian churches (just like with Methodist churches), but the conservative churches match up fairly well, as do the liberal churches.
Unitarian Universalism would seem less familar to you. While some UUs are Christians, many are not. Some UU churches are predominantly Christian, while others may be predominantly atheist, humanist, Pagan, etc. Because of that diversity, there's not an official church stance on too many topics. I can give you a general idea what UUs (in general) and UU Christians may be likely to believe.
1. What does it believe about Heaven and Hell?
Universalists (historically) reject the idea that a loving god would condemn
anyone eternally to hell. A few individuals may believe in the existence of hell, but not many.
Other than that, there is no consistent belief in an afterlife. Some believe in heaven. Others believe in reincarnation. Some believe that there is no soul, and death is the end.
2. How traditional is it?
Not particularly traditional. Depending on the church (and the Sunday), it may seem extremely un-traditional.
3. Are there a lot of rituals?
That depends on the church. If a church tends to be predominantly Pagan in nature, there will be a lot more rituals than if the church is predominantly atheistic/agnostic in nature.
There are two rituals which are widely practiced across UU churches as a whole. I can think of three others that are regularly practiced at my church. (Each of the aforementioned rituals is practiced once per year.) Other rituals may be added or removed as the minister chooses.
In most cases, there will be fewer rituals than you are accustomed to, but most (or all) of the rituals will be completely unfamiliar to you.
4. What does it believe about creation versus evolution?
The official church stance is that our beliefs should not ignore science. Every UU that I've met believes in evolution, but there are probably a few who disagree.