No mention of Dancer: http://www.perldancer.org/ This is my default and goto. I love it.

I like the simplicity of plain Go, but I have not done much with it yet. It seems quite straight forward and easy to pick up and get going with.

Otherwise, Python Flask is nice as well as Sinatra or Rails in Ruby. I'm not much of a fan of Django, but it's personal opinion. I just don't work well with it, others seem to really dig it. Seems nice otherwise.