I used the 46 LA for all my fun fly planes I competed with. Everyone ended up with an 11X6 APC but I did a lot of testing to find out what prop I liked best. I like a slower plane with more thrust and you may like something different so testing is the only way to know for sure. All props mentioned will work. I never tried a 12 inch of any pitch so can't say, seems a bit big for the little LA but who knows until you try it.