In Louisiana, it is Evange-lynn. We only use the -leen pronunciation if we're talking in French. And we're super-possessive of this name because of the legendary Evangeline being buried here.
Laura, mom to ds "Big D" (1.09), dd "Azalea" (10.10), and twin girls M and B (3.13)! Wife to my favorite. Cloth diaper industry geek. Birth geek. Church geek.