If you want the rationale behind this:
For a yardstick , all of Nishio Issin's works are rated 10/10.
For my 4 projects now:
Baka Test: 2/10 (as of vol 7.5, may have lapsed into 3)
IS: 4/10
TAMnI: 6/10
SnS: 8/10
List:
Baka Test: 2 (+1)
IS: 3
TAMnI: 6
SnS: 8
ZnT: 4-5
HnA: 3-4 [2, 5]
CsR: 7-9
KnS: 4-5
-gatari: 10
Zaregoto: 10
DyD: 1 (+1)
OreImo: 4 (+1)
MM: 2
Kamimemo: 7
Kampfer: 2
Ben-To: 6
Campione: 5-6
Seizon: [1, 2, 3] (+1/2)
Nogizaka: 4
Accel World: 4-5
SAO: 4-6
Itsuten: 1 (+1)
Oreshura: 3
Haganai: 4 (+1)
Unicorn: 10
Horizon: 4-5 [4, 5, 5] (+1/2)
[] - Opinions
() - Optional
Note: Last mentioned ranking by given translator. Translators in agreement are not listed in [].