The best ships for dealing with tougher AI in 2.1 are actually the federal and imperial Eagles. Two very affordable and very FUN ships. They can out-turn the enemy quite easily and take on much bigger ships, especially in RES where you get plenty of help from the miners and police to kill things quickly. And relatively risk/investement free.
Yeah I will be definitely trying this after reading about it on the forum. I love fast responsive ships that can turn on a dime. The only thing that has put me off the eagle is how fragile it is, which is why I prefer the Vulture and the DBS. But with the smaller ships getting a speed boost and the eagle being the most manoeuvrable according to the wiki, it could be really useful for sniping kills in a high res.
I am sure that there's going to be some undiscovered niche that can be exploited for big gains. Like how people used to sit by capital ships sniping kills in CZs for example.