I did some checking regarding your question about pacifist religions. Wikipedia has a list of pacifist faiths. They show 24 different groups, including JWs, Quakers, Unitarian Universalists, the Unity Church, Buddhists and others. Even groups within religions are mentioned such as Catholic peace movements.
Some religions tolerate war under certain conditions, but generally discourage it, for example, the official Catholic teaching of "just war." I don't know any legitimate, mainstream religion that likes war. Some have more nuanced positions than others, however.
Regarding your question about religions that preach, Christianity is a religion of conversion. This is different than some religions that discourage conversion and propagate the faith by passing it on to the next generation (ex-Judaism, Hinduism). Since that is the case, you can expect the vast majority of Christian religions to be doing what they can to proselytize and attract converts. Most have some form of missionaries as well as community outreach for this purpose.
The WT claims that the only legitimate way to fulfill your duty to preach the "good news" is to go door to door. Most Christian religions would disagree. Christianity didn't get to be the largest religion in the world by accident, or merely because of the Roman Empire either. The religions of Christianity have a long tradition of preaching as Christ commanded. Even so, there are groups who are well know for going door to door, such as the Mormons and Seventh Day Adventists (another pacifist religion, by the way).
The WT likes to set the parameters of how a religion should be judged and then make sure that only they meet that (their own) criteria. Not only is this unfair, it is misleading. Everyone should do their own research with an open mind, not accepting the WT self-serving view of everything. It is enlightening to see how people of faith from many different traditions have lived out their Christianity.