There's a guy in our church who plays acoustic guitar, electric guitar and piano and electric keyboard. Quite talented, I think! So go for both and if you find you don't like one as much, drop that one.
Piano. It teaches you to play several instruments. It is much harder to translate guitar skills to piano. Learning piano teaches you how to read music. Learning guitar can, but most people usually learn to read tabs which isn't even close to the same thing.
I was forced to take piano lessons as a child. I hated playing at concerts and quit after 6 long years. I later picked up a banjo, then a guitar, and took a few cracks at the fiddle.
The piano lessons taught me much about the chords and music theory so now I'm glad suffered through them. But not the concerts, they were agonizing. I did play rock and roll professionally for many years for people, but that was for fun and profit.
Both instruments are not that difficult to play but it is easier and cheaper to buy and store a guitar.
Did you learn to play a musical instrument when you were a child?Did you learn to play any musical instruments as a child? which was it? I learnt how to play the organ. I had lessons for about 5 years...