Well I pick the roaches because I don't push. What I do is mainly assault forts by myself, so I need my roaches to soak damage. I just place creep near forts and even the core and use nydus to attack and retreat when anyone comes. I have managed to destroy all forts and core by myself using this method. It's also the reason I pick battle momentum and nydus, you barely take damage from forts and cores because I keep a constant stream of roaches, banelings and hydralisks attacking and soaking up damage and once out of mana I use nydus to regain it and repeat. Only warning I would say is that it's easy to get carried away sieging and ignoring your team/objectives. Also I am not sure between grooved vines and the mutalisk, I figure if I take on forts on my own grooved vines would be better since they would just be acting as a sponge and getting killed anyways. Only good replacement for roaches that soak damage would be demolitionist to get buildings destroyed quicker.

The lvl 1 talent is pretty terrible. I'd either go with the Baneling distance as it can help you assault a lane even if you're far back, or go with the Health Regen as you'll be on creep almost the entire game and it helps immensely.