Thank you, those of you who voted on a type of robot! It looks like underwater, cybernetic/bionic and space robots were all tied with the highest number of votes. Unfortunately, that means I still have to pick one, but at least you narrowed it down for me. :)
I will be building a collection a robots over this year for my senior project. Thanks to these votes, I will be able to come up with usable robots. They will most likely be underwater robots, as they would be the quickest to build and I only have one semester. I will post pictures, videos and all that good stuff once my project is complete.
Thanks again!