For me it's the right side isle. I am left handed and sitting there prevents my elbow from banging into a righty. I do have to remember to keep that left elbow in when the cart comes barreling through the isle.

You do realize you don't have to face the aisle regardless of what side of the a/c you are on.....

Prefer right or left side of the plane?
 

always a window, side depends on north/south, morning/evening. I hate the side with the sun.

Same here. 2D is my idealseat.

If there is no scenery to be seen, I generally pick the shady side of the airplane.

Complicated decision tree. If window, shady side. If AA MD80 in F, right side (right side seat pitch is slightly bigger than left), row 6 (fuselage widens as you move back from the pointy end), MD80 Y - right side. Except for those specific types of reasons, indifferent.

For most flights I'm not too picky unless I'm flying at sunrise or sunset. Then depending on whether or not I feel like watching it or sleeping will be a factor. Also, if I want to see something specific on takeoff or landing and feel confident in the wind patterns then I will select a certain side. I prefer the left side going in and out of HNL, for example.

And on wide-bodies I like sitting on the right side. I guess it's because I don't get to fly the, too often so when I do I like crossing the aisle to the other side of the plane. Sounds pretty silly probably but it's not something you get to do on every plane.

Depends. I usually sleep on my left side, which does mean I'd want a seat on the left side of the plane if that was a factor.

I just prefer window, either side. But this thread did make me go check my flight into LGA later this month so see what view I'd see on the way in (I'm on the right side so hopefully can see the skyline)!

All depends on where you're arriving from (from the west or south or north) and which runway you land on. If you land on Runway 4 or get an Expressway Visual to Runway 31, being on the left side would be better (as I have lucked out with). However if you arrive on Runway 13, then the left side would probably be better. Runway 22 can go either way as one of my arrivals we flew parallel to the East River and then past LGA and then way out over Long Island Sound and then finally back into LGA. Having the left side worked out here because we broke out of the cloud layover just over the Verazzano Narrows Bridge before flying up the East River, offering a great view of Manhattan at night. :) Another time when landing on 22 we flew more up the Hudson and then made a u-turn back into LGA. Being on the right side worked out in my favor (in this case I got one of the last upgrades and the only seats were on the right side so I didn't even get to pick). Unfortunately it's a lot of luck because you can't always predict the wind patterns so you just have to hope you made the right choice.

Oh rats! Well, I come in from Cincinnati in the morning. Last time I flew in I was on the left and saw the Statue of Liberty which was fun. I have no idea about runways at LGA since I only fly there once a year. I am constantly flying into SLC which is awesome to fly into at night at least, with the mountains and lights.

'Depends - short haul or long haul? F/J/Y?' - general case is "Aisle on the left hand side" - I'm right handed, and 6'1", so that gives me a bit more room - but it depends if I've picked up an injury, so might switch sides if I've hurt my left leg. If it will be a bulkhead then I'll take the window - not on a 747 exit row, that bulge from the door gives you no room at all.

747 J I like 14A upstairs, you get all the storage bins next to you and if I need to get up I can go straight out if nobody is next to me, or over the back/bins between the seat and fuselage to avoid climbing over the other person.

Right Side Aisle Seats For Laptop Touchpad
 

I prefer the aisle and if I am on the right side and using my laptop touchpad people (or the drink cart) bump into my "mousing" arm and mess up my document. Right side aisle eliminates that issue.

Left side, window. Strictly out of habit.

I stick to the left side. I like aisle seating and I am right-handed...that makes it easier to employ defensive tactics against boarding travelers' hand-carry luggage swinging toward my face.

You forgot sexual orientation. :D