I generally stand if I only need to urinate. I tend to aim just above the water line on the back of the toilet which seems to minimize (but not eliminate) over spray. I only sit if I'm doing number 2, but find that no matter where I tuck the tail (so to speak) urine builds up on the under side of the toilet seat. I'm usually the one who cleans our toilets, so it's about the same cleanup either way.
Too much information, but I occasionally urinate in the shower. While this may seem gross to some, the pipes connect under the floor anyway so it's going the same place. And with the shower running over spray is not an issue. It's probably more hygienic than going in the toilet.
If I'm working outside, I generally prefer to urinate outside also (we're in a rural area and I hide behind the shed). It's faster and easier to unzip and go than to walk all the way back to the house, remove muddy shoes, do my business, put muddy shoes back on, and walk back to where I was working.
I've never been a fan of urinals. Even in public restrooms I opt for the regular toilet (seat up of course). Somehow I just feel like I'm peeing on the wall with a urinal.
My brother-in-law is building a new house and is installing a urinal in their bathroom. I thought that was weird, but apparently it's a growing trend. To each their own.
I tend to drink a lot of liquids throughout the day, which means I urinate a lot too. Thankfully, I almost always sleep through the night without getting up to pee. The only aging side effect I have noticed is more "dribbling" after I'm done. The bladder is empty, but the pipes apparently take longer to clear than they used to. Ah, the joys of getting old.