My character would probably get along with Soul the easiest, and although he'd find Black Star's personality grating, he'd have to respect the fact that someone so tiny is even stronger than he is. He'd probably view Tsubaki's meekness as insincere, and write her off as having nothing to contribute without Black Star leading her around by the nose.

He'd find Maka dull (is she a teacher now? Feels like she would bury her students in work), and probably reply to Kid's freakouts by telling him the true measure of a man is in how he endures hardship - not that it would help. He'd avoid the Thompson sisters, since one of them is mostly just vain, and the other is barely capable of coherent conversation.