To be hinest, a ton of arty is far more appealing to me. A large combined squad and FRFSRF can spam alot to death and can also act as a massive wound bubble, to shield other things.
3 Arty squadron can also be very painful, whether your going for griffons to keep things moving, or Medusas to wreck tanks.
Air cav is still very cool though and when pulled off effectivly can be incredibly nasty to face.
i have to agree here. i dont leave home without a shed load of artillery. call me old fashioned but i love my three basalisks, all my guard lists have them. i also find the manticore is a very usefull and ejouable tool and makes light work of most infantry.
on the air cav front this can be great fun using paratrropers esentialy however if you draw from history you will see it is unwise to rely on paras alone to do the job. they need support. i find the most enjoyable tactic for me is blitzkrieg. you have a para element in valks or vendettas to outflank right into thier lines and support them with artillery and mechaniaed infantry. not forgetting the tanks. this is a very strong formation that works very well and is great fun to play and challenging to play against.