Help me perfect my team?

[Mikefox124]

I feel that my team is not up to its prime. Here are all of their movesets and see if you can help me perfect them.

(How I use them in order:

Floatzel (first; Phys. Sweeper)
Gligar (wall/mental Phys. Sweeper)
Weavile (Phys. Sweeper; priority user; can get rid of Ninjask)
Gardevoir (Special Sweeper)
Heracross (4th to last for Flame Orb; Phys sweeper)
Wigglytuff (Special Sweeper; Choice user)

Floatzel @ Razor Fang
Adamant Nature
252 Atk 252 Spd 6 HP
-Waterfall
-Brick Break
-Ice Fang
-Crunch
Use first. If pokemon has electric attack; switch to Gligar

Gardevoir @ Zoom Lens
Modest Nature
252 Sp. Atk 252 Spd 6 HP
-Thunderbolt
-Psychic
-Shadow Ball
-Focus Blast
Kill first; ask later

Heracross @ Flame Orb
Jolly Nature
252 Atk. 252 Spd 6 Sp. Def
-Megahorn
-Close Combat
-Stone Edge
-Aerial Ace
Set up Flame Orb in switch

Gligar (I do not want to evolve it, please don't suggest) @ Leftovers
Careful Nature
252 Atk. 252 Spd. 6 Sp. Def
-Earthquake
-Stone Edge
-Aerial Ace
-Roost
Walls if there is a electric pokemon or ground pokemon

Weavile @ Razor Claw
Adamant Nature
252 Atk. 252 Spd. 6 Sp. def
-Night Slash
-Brick Break
-Taunt
-Ice Shard
Picks enemies off. Can distract Spiritombs

Wigglytuff @ Choice Specs
Modest Nature
252 Sp. Atk 252 Spd. 6 HP
-Hyper Voice
-Thunderbolt
-Ice Beam
-Focus Blast
Survivor picker; kills pokemon with low HP if it can live