Donovan's voice is too calm, and even though Hayabusa's my main... I just don't really like his voice for the system voice. I'm being picky, lol - leaning towards Ayane.
There are some voices that imo are just too bad - like Bass. (Sorry Japanese Bass Voice Actor.) I like Ryu's VO better in Japanese, and possibly Bayman too (I like both languages for him) but some voices are just... no. If they had Jann Lee's old VO (what I know to be from DOA2 - probably in more than just that) I would SO stay on Japanese. Memories, hearing that voice...