After many hours of blood/sweat/tears/grinding, my Eevee team is leveled up to 100. I didn't EV train, but I did breed to get the natures I wanted and I didn't use anything like daycare or rare candies. I just went and beat all the PWT gym battles and my team did great. What a blast! I just had to share.

Vaporeon
Ice Beam
Scald
Signal Beam
Shadow Ball

Jolteon
Thunder Wave
Thunderbolt
Shadow Ball
Hyper Beam

Flareon
Fire Fang
Bite
Dig
Superpower

Espeon
Psychic
Morning Sun
Hyper Voice
Psych Up

Umbreon
Faint Attack
Moonlight
Confuse Ray
Toxic

Leafeon
Synthesis
Leaf Blade
Swords Dance
X-Scissor