I have the opportunity to pursue a research project in either lattice QCD or QED. In the case of QED, I'd be writing the code myself, will be able to understand the whole thing, et cetera. There shouldn't be any mystery in this. It almost seems like a long exercise, and there isn't anything I'd do that hasn't been done in detail before. In the case of QCD, I'd be using code from my adviser's collaboration. Given the size of the code, I wouldn't be able to understand the whole thing and would likely be working with a black box for a majority of the time. However, this would give me a chance to work on something that more closely approximates "real research". In each case, I'd be working on studying some sort of phase transition in one of the theories. My question is regarding which would be best in terms of research experience. I know that in the "real world" I'll have to work with a number of things I don't entirely understand, will have to use the code written by many other people, etc. So, I see the QCD thing as an opportunity to show I'm capable of doing that. On the other hand, in the case of the QED I'll be intimately involved with each step of the process and will get more out of the details because of it. Will either look better in terms of research experience? The QCD provides an opportunity to work on a problem that seems "real", but I lose out on the other details by going that route. Thanks.