I'm doing this poll since Grimm is moving to its new time slot tomorrow after The Voice due to Ready for Love flopping and Smash 99.99% already cancelled (anytime a new episode airs on Saturdays, it signals cancellation).

Revolution has lost steam after a strong start in the fall while Grimm has stayed steady after its hiatus. It'll be interesting whether to see if Grimm is fit just better on Fridays or if it will gain some new audiences due to Golden Boy and Body of Proof under-performing in the ratings. The latter, though will be pre-empted due to the Amanda Knox Story on ABC. However, I still think Grimm will win its time slot on Tuesday, unlike Revolution as Hawaii Five-O returns with new episodes tonight.

I believe Grimm (for the first time) will beat Revolution in the ratings this week?
My predictions
Revolution - 1.9 (faces a new episode of Castle & Revolution)
Grimm - 2.4

Grimm is not jumping a full ratings point from its past episodes.

Grimm has tried new nights in the past. It manages to keep its loyal following but doesn't add much more. Honestly they were dumb to waste this spot on Grimm. It has an audience already. It's a steady performer. This spot should have gone to Hannibal but apparently they're intent on killing that show.

There's no point in trying to make Hannibal a hit show anymore. The damage is done.

I don't know. It's only aired a few episodes. I'm pretty sure someone could still sample it. It would be a better idea than putting Grimm there. And then they could renew Hannibal and pair it with Grimm on Fridays next season.

Welp, looks like 'Grimm' got a 2.0 rating last night - up 54% from last week and 100% from 'Ready For Love's 1.0 last week.