So, I'm voting for manual. CLUTCHLESS manual, that's also called sequental.
Damn, what idiot put the hardest and the easiest (in plan of driving) transmission types in one group!? (trolls, go out - I was oriented on that list)
Just look how much differences they have:
Manual has clutch pedal (curse it) - Sequental hasn't.
Manual has separate section for each gear - in sequental you just need to move shift stick up/down.
Let's look on parking:
Sequental:
Pressing gas pedal, clicking 2 times with shift stick, pressing gas pedal, clicking 2 times with shift stick in opposite side, repeat until successfully parked. Easy, huh? (parking with automatic transmission is a bit different, but as easy as parking with sequental)
Manual:
Pressing gas pedal, pressing and holding clutch pedal, moving shift stick in oppposite edge, only then releasing clutch pedal, pressing gas pedal, pressing and holding clutch pedal, moving shift stick in oppposite edge, only then releasing clutch pedal, repeat until you're parked your car. One mistake - have problems.
Also, if you need to stop fast on icy road you must to hold brake pedal and move gears down, ONE AFTER ONE. Again, using manual transmission is the most FFFFFFFrUUUUUUUstrating. One mistake - have problems.
And the weakest point on the forums like that - racing. Racing on fast car, no matter if it's Mercedes C-class touring car on Laguna Seca or Lamborghini Cala on the forest road. And again, manual transmission is your enemy. And again, one mistake - have problems.
I have to say only one thing - WHY THE F-- THEY'RE IN ONE GROUP!? WHY THE F--!?
I love sequental transmission as much as I hate manual. But WHY THE F-- most of the car manufacturers still prefer manual/automatic to sequental!?
PS: Cars driving themselves? I do not want them. Make these cars for elite or lasy guys, but let driveable cars survive.
Small point of definition . . . . "Clutchless manual" is semi-automatic, not sequential.
It operates sequentially at the control because you push an upshift or downshift button, then the tranny is shifted by automatic mechanical control and the clutch is operated by automatic mechanical control.
A sequential transmission is what you find in a motorcycle, most race cars these days, and a few passenger cars. There are no synchronizers in a sequential gearbox, and the shift forks are operated by a rotating shift drum that is turned one way or the other by a ratcheted shift lever. The shifting operation, and clutch operation, are direct mechanical links to driver-operated lever and pedal.
The flappy-paddle shifter that you are calling sequential is more correctly called semi-automatic because the mechanical operation is handled by servo controls, the driver simply tells the system "shift up" or "shift down" by using the paddles. He doesn't actually operate the gearbox or clutch. Unlike a real automatic transmission it doesn't shift until the driver tells it to (thus
semi-automatic,) although many of the systems available can be programmed to do so.
So what you're calling a "manual" is the traditional H-pattern shifter with the clutch pedal. A sequential transmission could just as easily be a manual, with a clutch pedal or lever, as found in Indy cars, Grand-Am Daytona Prototypes, LeMans cars, etc. Sequential gearboxes, completely manual.
As to the rest of your . . . . . post . . . .
I've never had an issue parking my manual cars. I've never had an issue downshifting as I slowed down, good grip or not. Any grip issue would have been present no matter the gearbox. If you can't smoothly downshift a manual in poor grip conditions, then you can't operate a manual correctly.
As to three pedals and two feet, that's also not an issue. It's quite simple on most traditional manuals to heel/toe the downshifts, operating brake and throttle simultaneously with the right foot, and clutch with the left. Yes, it's more "work" than whacking a button for the downshift, but it's infinitely more satisfying and enjoyable.
You keep saying "one mistake, big problems." The only mistake I can think of that you'd mean is sloppy shifting, which is just poor operation and easily overcome.
My own personal order of preference is traditional 3-pedal manual, semi-auto manual, and traditional automatic.
I hate that I can't squeeze just a bit more throttle without getting a downshift on an automatic. I didn't really want a downshift, I just needed a tiny bit more gas for just a couple seconds.
OTOH, I hate traffic jams in a traditional manual.
On your basic point, though, the poll should have semi-auto as a choice.