Ok, I will bite. When it comes to the thousand years in Revelation 20, there are three main views. Premill (I won't spell it out), Amill, and postmill. Dispensationlism is premill, which considers the 1,000 years to come after the rapture. Amill views the 1,000 years as not literal, and postmill views a great Revival then Christ comes back. There is also historic premill which is not exactly like dispensationlism.
Where do I find myself? I would say a positive Amill. Postmill sounds really inviting and I like those guys as they are often the most evangelistic, but I don't see it exactly in Scripture the way they say it.
One of the things that attracts me to Amill is I often hear other viewpoints on everything, especially in Revelation and with a lot of assurance say this is what this means and this is what this means. They often have charts and seem so self assured, and yet, so many of their predictions have not come to be correct, not to mention that I often don't see what they see in the Scripture. An Amill on the other hand will often look at much of Revelation and will admit, "I'm not sure."
With that being said, I will be the first to say, I am not really sure. Maybe the other viewpoints are correct. It's not something that I really want to argue about. Discuss in good faith, sure, but I am not even 100 percent certain an Amill position is correct.
However, I would say that there are some very serious errors with SOME dispensationlists, NOT ALL.
1) Often dispensationlists are way too passionate about it. Of course, that can be the case with any theology, even good theology, but when it comes to Revelation, people are often obsessed about their viewpoint. One of the best sermons that people think that I preached was taking them through the book of Revelation, pointing out at every turn where Jesus is mentioned. My congregation is mostly older and thus, dispensationlists, but they loved the sermon. They had never seen Revelation like that before.
2) As one person said, dispensationlism makes the church into cowards as they fear the big bad anti-christ.
3) Some dispensationlists view Old Testament people as being saved by works instead of by faith alone. If that were the case, then you would have to throw out Romans 4 because Paul’s whole point is that even Abraham and David were saved by faith alone. In fact, all of Romans would have to be thrown out because Paul’s whole point in the beginning of Romans is that it is impossible to please God based on works for every human being.
4) Some dispensationlists will talk a lot about the temple being rebuilt and sacrifices made again. I'm sorry, but that is an affront to Christ. Those sacrifices where meant to point to Jesus. I don't see how this could be in God's redemptive plan to have people make sacrifices again.
5) Finally, I just don't see in Scripture where people get a second chance once something happens like the rapture. It seems really clear that people are appointed one time of judgement. At the very least, the Bible focuses in on judgement at the time of death, not a judgement where some are taken and some not.
Again, I will be the first to say I might be wrong, and I am not willing to argue about these things. Discuss, sure, but no arguments.