This has been done to death on here, and I think my opinions are well known but...
Manual for me every time. I loathe autos, pretty much the only time I'll drive one is when I'm in the US as that's only because it's damn near impossible to hire a manual over there (due to the abysmal standard of the average driver). Doesn't matter so much on motorways and the like where most time is spent in top gear anyway, but on twisty roads I find the car isn't anywhere near as balanced with an auto. You can't get into the right gear before going into the corner, meaning you don't get the same engine braking and the gear is often wrong for coming out. Not to mention that shifting half way through a bend when pressing on is not a particularly good idea either!
Add to that torque converters are pure evil (like having a slippy clutch) and that most autos are geared *far* too high kinda completes the reasons I loathe them. Each to their own of course, but personally I enjoy driving and I just don't feel in control without a proper gearbox, if I ever get to the point where I hate driving enough to want a slushy I'll probably just jack it in completely and take a taxi or hire a chauffeur (if I can afford it) lol.