Showers for me since it make me feel like I'm in rain or waterfall...although I rarely do this [mostly since its like two-three hours away from where I live], but I much prefer to be swimming/slight bathing in the river or waterfall. Did that at camp - swimming in a river with a mini waterfall and it was one of the best experience of my life.
I used to take baths all the time, but in the house I currently live in it takes a full hour for water to heat up enough to fill a bath, and with people seemingly-constantly washing dishes or using hot water elsewhere, I never get enough hot water to bathe so I have to settle for the shower.
Showers feel more cleansing since your filth is constantly cascading down the abyss as if your very soul has become clean. Baths are more peaceful and I can actually listen to Phantom of the opera without hearing that incessant pitter patter of water.
Both. Normally I start off bathing for the washing part, than take a cool shower to rinse off the suds.
However, if I can't get enough hot water for a bath, then I'll take a shower. My house's water heater is old, so it takes a while for the hot water to recycle. It happens especially if the hot water's not used on a regular basis. Usually, when I start up a bath, I fill the tub halfway, then leave it for about 20 minutes or so for the water heater to get back up, then fill it the rest of the way.