Ardboyz Daemon Army

So I've narrowed down my Ard Boyz decision to two different armies. Chaos Daemons or Witch hunters. In here I'll discuss my Daemon army and why I think it may do well.

Chaos Daemons
HQ
Blood Thirster w/ unholy strength
Blood Thirster w/ unholy strength

Elites
3 Flamers
3 Flamers
3 Flamers

Troops
12 Plague Bearers w/ icon
12 Plague Bearers w/ icon
10 Plague Bearers w/ icon
10 Plague Bearers w/ icon
9 Pink Horrors w/ bolt of change
9 Pink Horrors w/ bolt of change, changeling

Heavy Support
Soulgrinder w/ phlem, tongue
Soulgrinder w/ phlem, tongue
Soulgrinder w/ phlem, tongue

So obviously this isn't a very themed list. At the ardboyz I expect to find a mix of balanced, mech heavy and horde lists.

vs. Hordes
Flamers are good against hordes, no cover no armor save only invulnerables.
Soulgrinders can also throw down a flamer template or a pie plate (for marine types).
Horrors are really good at taking out eldar, tau, and guard as are plague bearers.
Bloodthirsters are beasts.
Only horde I'm currently worried about is Orcs. I don't expect to see lots of orcs because they just don't have enough good stuff at 2500, but we'll see.

vs. Mech
Soulgrinders have the tongue upgrade. In 5th ap1 is gold and being able to get a str10 ap1 is just awesome. Only downside is their low bs of 3. If I can't get them through shooting hopefully an assault will do alright
Flamers should give me at least one glance per squad. While this won't destroy the vehicle it should at least keep it from shooting at me.
Horrors rear armor and 1 more str8 ap1 weapon. This is another unit that I'm hoping will just keep a tank from shooting at me.
Bloodthirsters are beasts but won't do too well against skimmers.
The Eldar and Tau mech lists will be my toughest games, the fast moving skimmers will be tough for me to take out in hth. Hopefully plaguebearers going to ground on the objectives gives me a good shot at a tie.

Daemonic assault strategy will be largely based on opponent.
If it's a cc army it'll probably be
2 Bloodthirsters, 3 Grinders, 2 Plague Bearers for my first wave.

If it's a shooty army it'll probably be
3 Plague Bearers, 2 Horrors, 2 Blood Thirsters

The Grinders and Plague Bearers suppport each other well. The BT's and flamers are meant to just go out and kill stuff more kamikaze than anything else.