I like Koeman's "Koemanisms", like "For the team", "That's football" and "Soushampton". He comes across as a likeable bloke. This is of course helped, in our eyes at least, by the good start - Saints fans may have viewed him differently if we were at the bottom of the table. A little bit of personality goes a long way too - something we didn't see much from Pochettino, but did in Adkins.
Oh, I also like the way he delicately licks his lips before he answers a question, but that's a deep seated personal issue.
Van Gaal comes across as strict, I've rarely seen him smile. Of course we view him differently to Koeman because he's not our manager. That's my view on things anyway. I'd love it if Koeman could finish higher than Van Gaal at the end of the season though.