Ok so here is an example, took MAW II down from the shelf, first page I opened it up to 22 October 1942, almost smack in the middle of the book. It's a pretty good example.
DAF fighters escorted RAF medium bombers on several raids through the day.
First in the morning, 12 Kittyhawk Is from 4 SAAF Sqn escorted 18 Bostons on raids against Axis airfield in Daba, encountering Bf 109s from II. and III./JG 27
10:45 18 American B-25s were escorted by 6 x Kittyhawk Is from 450 Sqn RAAF, 10 x Kittyhawk Is from 3 RAAF and 10 from 260 RAF
11:00 Spit Vs from 145 Sqn, Kittyhawk IIIs from 112 Sqn, and P-40Fs from the US 66th FS (probably about 20 aircraft in total) flew a fighter sweep ('de-lousing') over daba. They were engaged by a total of 17 Bf 109s from II./JG 27, III./JG 53, and II./JG 27.
12:15 another fighter sweep from nine Spits from 92 Sqn, 12 Kittyhawk IIas from 260 Sqn encounered Bf 109s from III./JG 27
11:00 15 x Macchi 202s from 9 and 10 Gruppi flew interception to engage the formation of Bostons.
11:35 11 x Macchi 202s from 4 Stormo, engaged Spitfires at 23,000 ft.
12:00 8 x Macchi 202s from 10 Gruppo engaged Spitfires
At an unstated point in the afternoon 238 Sqn RAF(Hurricanes) flew escort for a Tac-R mission.
Allied forces making claims or taking losses:
250 Sqn RAF (Kittyhawk III)
66 Fighter Sqn, 57th FG USAAF (P-40F)
145 Sqn RAF (Spit Vb)
260 Sqn RAF (Kittyhawk IIa)
450 Sqn RAAF (Kittyhawk III)
3 Sqn RAAF (Kittyhawk I)
601 Sqn RAF (Spit Vc)
92 Sqn RAF (Spit Vb and Vc)
238 Sqn RAF (Hurricane II)
4 SAAF Sqn (Kittyhawk I)
Axis forces
5./JG 27 (Bf 109F-4)
7./JG 27 (Bf 109F-4 trop)
8./JG 27 (Bf 109F-4)
Stab II./JG 27 (BF 109G-2 trop)
7./JG 53 (Bf 109F-4Z)
8./JG 53 (Bf 109F-4Z)
9./JG 53 (Bf 109F-4Z)
1./SchG 2 (Bf 109F-4)
4.(H)/12 (Bf 109F-4)
73 Sq 18 Gr 4 St (MC.202)
90 Sq 19 Gr 4 St (MC.202)
91 Sq 10 Gr 4 St (MC.202)
96 Sq 9 Gr 4 St (MC.202)
97 Sq 9 Gr 4 St (MC.202)
Claims were
DAF 7 X Bf 109 + probables and damaged
Axis 4 x P-40, 2 x P-46, 1 x B-25, 6 x Spitfires (the Italians claimed all the Spitfires) (12 fighters and 1 bomber)
Actual losses were
4 x Bf 109s shot down or crash landed after air combat, 2 x Bf 109s lost to Flak, 1 x MC 202 shot down, (5 fighters lost in air to air combat)
2 x Kittyhawk III, 2 x KIttyhawk I, 1 x Spit Vb, and 1 x B-25. Two Kittyhawk IIa were also badly damaged by 109s but landed at their own base (5 fighters +1 bomber lost).
Estimating the number of German and Allied fighters based on the number of units, all of which were lower than normal due to all the fighting, but the Germans had a bit fewer per squadron.
~ 40 -50 Bf 109 (mostly F-4 with a few G-2) and 34 MC 202 = Roughly 75 fighters
~ 25-30 Spit V, 30-35 Kittyhawk II or III, 15-20 Kittyhawk I, and 8-10 Hurricane II = Roughly 85 fighters
So as you can see, the odds were fairly even, as were the results. It's hard to say whether Kittyhawks or Spit V accounted for the enemy losses, but it wasn't extremely one sided. The Allies had a slight numerical advantage but roughly 30% of their forces, about 15 or 20 Kittyhawk I and 8-10 Hurricane II were definitely second string aircraft. Only the later model Kittyhawks and Spitfires could hold their own against the 109s - notice those were the ones sent on the 'de-lousing' missions.
Also worth pointing out, the 109s were almost all Franz.