Hey there,
my name is Tim, I have participated in 13 "ludum dares" (that doesn't sound right …) and several miniLDs and other smaller jams over the last years. I am happy to see a new jam here and am looking forward to playing all your games (and creating one myself ofc) ;-)
I will probably use unity this time. I used to make games in Java+Libgdx+artemis-odb(the best java entity component system period ™©®) but I gave in to the luxury and ease of rapid prototyping in unity … Sometimes I think I made better games when I coded everything myself though ;)
Have a good time ! looking forward to reading your progress reports :)