I own both Bitcoins and Litecoins, however, my personal preference goes toward Litecoin. My personal reasons for this have to do strictly with how coblee has released it. Pre-announced, and in the fairest way possible. I also have great respect for coblee for how he and his team are supporting it and how he has dealt with various issues in the past.
While Bitcoin is original and truly amazing, my only issues with it are things like this:
https://bitcointalk.org/index.php?topic=37333.0;allNow, like all Bitcoiners, I realize that there was no other way, and I don't really mind. However, this makes me feel that Litecoin is more fair. Plus, there is still ~2.5 years left till halfing occurs, so there is plenty of opportunity for newcomers (who were brought in by the media attention to Bitcoin) to acquire it or mine it.
I also know that 0.8.1 is in the works, however, a lot of aspects of working on the client are complex and from what I gather, the developers working on this do not want to rush things and observe how Bitcoin network handles May 15. They are concerned for the health of the Litecoin network and do not want to end up with something like this:
https://bitcointalk.org/index.php?topic=152348.0While Bitcoin as a currency/community can handle this due to it's huge support, something like this happening with a smaller cryptocurrency has a potential of destroying it. If not, it would certainly give enough weapons to the hostile part of the Bitcoin community to attempt to discredit it.
I support both networks and I think that communities should stop fighting over this. If your original purpose of this post was to find out which cryptocurrency you should use, I would say that you should use both.