What I've seen most is the line put above the vowel, resulting in animē (but difficult to type). As there is no additional (fourth) syllable, a-ni-mee would be

What I've seen most is the line put above the vowel, resulting in animē (but difficult to type). As there is no additional (fourth) syllable, a-ni-mee would be more logical to me, rather than a-ni-me-ee or a-ni-me-e. That being said, I like how the triple vowel makes it clear it's not the same sound as in say meet. (This gives me the idea to change my name to tuuukkkah...)