Meatball Lamborghini
It'd be cool if there was like, a Delteon, an Eevee evolution with no weakness.
that would be impossible.
Eevee goes with single type evolutions. (and theoretically they can't do Ghost, Bug, Dragon, Flying) and the only way to get no weaknesses is to combine two types together. and the only pokemon that i know that have o weaknesses are Spiritomb and sableye. (Palkia and Kindra have a weakness to Dragon only.)
Bug the weakest? I think not, three weaknesses (Fire, flying, rock.) but half damage from grass, fighting, and ground. the half damage from grass and ground is a major contribution. plus, when you start mixing types.
Surskrit has weakness to electric, flying, and Rock, but resistance to Water, ice, fighting, ground,and steel.
Looking at just individual types never gives the whole picture.