My Current Platinum team: rating/suggestions?

Currently, I'm post-game, all are at level 58. None of them are holding items (though I guess they should. Wish I could easily get stuff such as Choice Specs like in HGSS)

Of course, all suggestions and criticism are welcome. I feel like I'm doing pretty well for myself but that I could do better.

Empoleon
Torrent
Rash
- Flash Cannon
- Surf
- Ice Beam
- Rock Climb (subject to change)

Rotom
Levitate
Rash
- Discharge
- Substitute (will probably change)
- Charge
- Shadow Ball

Gallade
Steadfast
Hardy
- Psycho Cut
- Leaf Blade
- Close Combat
- Stone Edge

Gliscor
Sand Veil
Naughty
- X-Scissor
- Swords Dance
- Aerial Ace
- Earthquake

(I'd like to get Ice Fang in here somewhere once I get another Heart Scale)

Houndoom (I get the feeling the moveset here needs some work)
Flash Fire
Lonely
- Flamethrower
- Faint Attack
- Dark Pulse
- Crunch

A bit of explanation. I wanted a physical and special dark move, as well as something that never misses for double team spammers (though I guess Gliscor has that covered.)

That's it. 6th slot is dedicated to an appropriate HM slave.

May I suggest Bibarel to cover for a HM Slave? It can learn nearly almost every HM.

You could try a Starly/Staravia/Staraptor to cover for a Fly user.

I suggest taking out Rotom. I also suggest replacing it with a Froslass. Because your team is screwed when it comes on to a ground type. Replace Rotom, who is doing you the least amount of good, with a grass or ice type. Froslass is just personal preference.