I am very happy with the
Rip Curl Flashbomb 3mm Split-Toe Boots from 2014-2015 (pic below). The split feature is internal, which I think provides extra protection against toe front collisions.
They have made slight changes on the 2016 version, hopefully not for worse!
Before the Rip Curl's I used Neil Pryde 5000 and 3000 series (standard tip), but I feel they don't protect as much. I have also noticed that Neil Pryde offers split-toe options but haven't tried them.
I should also say that the reason why I wear booties is to protection purposes. I had several injuries in the past when sailing with bare feet (metatarsal bones and toe joints), and the booties have been very efficient in preventing further damage.