From: Rio Grande do Sul
I can only give you a theoretical answer because I never have done that, but from experience I can already tell you this path will become expensive, cost you initiative and certainly nothing for the faint-hearted.
For two reasons: First high losses. You will need to deploy a lot of units to adequately protect your arty and tanks from air raids. Even a 88mm AA with range 3 will only provide defense fire for adjoined units. Only SPAA units to come into question to provide defense for a mobile force. The AI won't wait for you to unpack your towed AA guns. Anyway, SPAA-units have very low ground defense values compared to hard attack values of tanks, because of this the AI will recklessness attack them. While late game SPAA-units have high enough defense to resist arty fire they will still blow up when attacked by tanks and this with SPG's backing them up. All this problems can be avoided when using fighters.
While the AI will certainly suicide attack your defending fighters with SPAA units, their air attack values compared to most fighter ground defense means they take only minor loses. Next turn you will retaliated and the AI's SPAA is gone for good.
The second reason is about what I just said. SPAA air attack vales compared to aircraft ground defense values are so low that you will not reliable destroy incoming aircraft, even when mass attacking. A 14 strength FW-190 fighter may do as much as 3 times the damage as a 14 strength Ostwind SPAA. As result enemy planes will possibly be able to retreat, refit and come back in strength for an other attack.
An other point that may speak against this tactic is that you lose the scouting and ground attack capabilities of your fighters. While the AI air force like to attack in waves, there is usually depending how fast you dispose the wave 2-4 turns time for your fighters to conduct reconnaissance or strafing missions before the next wave arrives. I like to send my fighters to scout rough terrain, reduce entrenchment levels or strafe arty.
That said you may screw all this and just go for it anyway to to role-play your campaign. I myself like to use inferior units because I value variety higher than uniformity of an all Hummel, Panther, Me-262 core force. While powerful it's also boring to look at. Of course in return I pay with a shortened life-span.
< Message edited by Dragoon -- 1/7/2013 1:37:40 PM >