I also am in favor of using systemd instead of sysv or upstart because of the great boot time performance. I am an intermediately skilled Linux user, using it since 1999 and learning everyday. By far, SUSE and Fedora/Korora have given me the best boot times and debian the worst. Ubuntu based distros came second.
Although its a common notion that Linux users do not reboot their systems much and Bootup speeds don't matter, its not true for me at least. I have a laptop and in my day to day work, i have to move from one place to another twice a day for which I either shutdown or hibernate my system. Solydk is my primary OS and even after some tuning and leaving only services that I use enabled at boot up, I am not able to get anything better than 1 min 40 secs until KDE Desktop becomes functional which is not that high but can be better. On Fedora and OpenSUSE, its around 58 secs to Desktop on the same system. It just feels more responsive and fast with these two.
I am not putting down SolydK or anything, its a fabulous distro and is my primary one. Not using Systemd is just one "shortcoming", if i must say, it has. Otherwise, all the pluses are in its favor.
Oh, there is one more thing that i miss in Debian, deltarpms or deltadebs whatever. I know Debian has its own reasons for not supporting it, but for someone living with limited internet connections, its really a blessing. Last night, my fedora system updated, there was 1 GB of data to download, and deltarpms reduced it to 200 MB!!
Anyways, I still like Debian and its philosophies a lot.