I like Hikaru Isshiki(一色ヒカル).
Those who played Crescendo would know how she sounds as the hero's big sister.
Actually, in earlier in this decade, she does a lot of the mature/sister type roles. She can jump from being serious(Crescendo/AneImo) to calm(Tsuma Shibori) to cheerful(Double Sensei Life) to even batshit insane(Aku no Onna Kanbu, though this one's very recent). She does dramatic/sad scenes real well with the little vibrations in her voice; really makes you feel that sadness and shit.
Though recently she's broadening her horizons a bit, even took a role of a loli(game title escaped my memory at the moment).
I like her most in Crescendo and AneImo. She also looks decent(not HOT, but decent).
Anyone else wanna share?

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