Nothing would make me more loyal to either line. Im not loyal to Carnival. The reason I book Carnival more often is the simple fact I live in TX and its the only year round choice. Carnival is not my cruiseline of choice, its just more convenient. Iv even gone out of New Orleans 4 times on Carnival now and twice out of Mobile just to get more variety in my Carnival cruises. Im starting to get bored with them. Iv just done 4 Carnival in a row and glad I have a change coming up to Oasis. I know some who can do the same ship time after time, but not me, I need to change it up.
I think whichever one you went on one after another you could get bored with. Variety is the spice of life.