190 general notes: 190s are excellent rollers. They won't out turn anything, though. Use the roll rate to scissors or other direction-changing manuvers instead of just pulling the stick into your belly. Good firepower and speed and poor turn usually mean you'll BNZ when first learning. Bad views (you get used to 'em). A-5 is best turner, but only barely. It's lightest so that makes it "feel" better too. D-9 has most power and is most competitive in LWA situation.
190As: Roll fast, dive great, good range, great firepower (gets better on A-8). Take the MG/FF on the A-5, and take something outboard on the A-8 (30mm are heavier than 20mm, remember). Climb not so great.
Gets 10 minutes WEP (same as 109 series), so use it to climb if you want to get to alt faster. See DokGonzo link in my sig for basic speed/climb info at different altitudes.
Don't try turn-fighting a 190A until you're more comfortable with it. At first, don't turn more than 45 degrees or so if you're BNZing. Fire the peashooters with your cannon. Don't bother "firing off" your peashooters -- they weigh almost nothing and it's better to just use them.
190D: Same as A, only less firepower (still plenty left, mind you) and more speed. Better top speed, acceleration, climb. Still don't want to turn fight this sucker. The speed and climb allows you to use vert more than the -As.
190F: Don't dogfight it. Seemingly more stable than the As when deep in the stall, but still doesn't turn very well and weighs the most of ALL 190 A/F/Ds. Extra armor means you will rarely lose oil, but you'll more likely get your butt shot off because it's heavier.
109 general notes: The 109s are decent turners. They are also great climbers and vertical planes. The earlier the model the better turner it is, but the weaker engine (the poorer vert-fighter) it has. G-2 is a good combo of power and agility. The later planes have amazing horsepower but worser turn performance (to be expected) so it depends if you want speed or turn radius. Keep in mind even the "worst" turning 109 is still a decent turn fighter. You won't be outturning spitfires at first, but you can still out turn other planes.
109E: Avoid it for now
109F-4: Slower, less power, climbs less, only 1 gun. Always take the 200 round option. Always fire MGs with cannon. Fire MGs further out to spook targets, to get range, to snipe. Fire cannon only when you have a sure hit. Don't be afraid to turn.
109G-2: One of the better climbers, faster than a G-6. Take 200 round option. Leave gondolas off unless you REALLY need them. They slow you down a lot, weigh you down a lot, and slow your climb a lot.
109G-6: Avoid it for now
109G-14/K-4: I lump these together because they are very close. The K-4 has more power up high (above 16k) but for most of the alts you'll fly at the K-4 is 20mph (or less) faster, but the G-14 turns slightly better. Both have a 30mm option. This gun will frustrate you if you're not used to it. I suggest the G-14 because it has a 20mm option to learn with. Only 150 rounds though. See gondolas commen on G-2.
IF you can kill with the 30mm, take it. It's a better gun despite its drawbacks. If you take the 30mm don't fire your MGs. Save your MGs and ONLY fire your MGs or ONLY fire your 30mm. The 13mms alone can get a kill or two, but you won't need them if you are close enough to land a 30mm hit, so better to save them. Also the 13mm hit sprites might confuse you at first, making you think you're landing cannon hits.
That, in a nutshell, is the 190/109 summary.
