Yes it is the blue boats for me too, i was not sure about the top right corner but i think it is an excelent cue as to what the subject is, and gives more interest to the picture.
I like number 2, but I like the first one better. I like the sense of calm, and peacefulness that it gives. Especially with the lonely man fishing. Very nice!
#1 is my favorite. The clouds are awesome in that one, and the water is so still! They are all good though. Love the color of the blue boats in #2. The best part about #3 is the reflection in water.