(I don't know how you grade these, so I'll let you classify it.)
Dunkek- Good guns, if derpy at times, can have all its guns on target while being impervious to anything less than 16" AP (or fucking 6" HE), fast, acceptable secondaries. Relatively poor AA, weak armor if the enemy gets a little side profile, and doesn't reverse fast enough.
Mutsu- Glorious 16" oppressor of tier 6, who cares about poor pen when you get penetration damage just by hitting the target? Solid range, can turn and move in a straight line with some semblance of speed(faster than USN Standards). Has torps, but they really aren't for use in most situations, pre-nerf Nagato armor is easy to citadel, the AA has me excited if even 1 low tier plane gets shot down, and is seen from the moon.
Yubari- Probably my favorite out of the pre-order ships, she has pretty green and white camo, and the amazing accuracy module to hit the lolibotes, gets DF, because tier 4 and 5 carriers needed more problems, torps are good, if you can make use of them, but the arcs are terribly narrow and require you to present your side. Downsides are meh AP, and no armor, and you can only bring 2 guns to the front, if a BB is paying attention to you.
Smith- Not a great ship, but fun. Little single torps reloading in under 10sec, 76mm spam cannons, slower end of DDs, can't stealth torp, and can no longer stealth fire. It's just fun to cruise around breaking my mouse from all the clicking. Stuck one on top of a Moskva once, was fun.