which rails voting system gem has the following features?

Which rails voting system plugin or gem that has the following features

• vote up &down

• Ability to show net number of votes

• vote for all objects in the model (But only once per object per user)
• list all objects in the model by higher number of votes
• Not to vote on your own object

I have looked at thumbs up gem,but its not stating clearly,i might be wrong (if i am wrong please correct me).Also i need to know if it is possible to customize thumbs up gem?Thank you in advance

This may be what you're after: make_voteable

There are loads of other voting gems available, see ruby-toolbox:

https://www.ruby-toolbox.com/search?utf8=%E2%9C%93&q=voting

And yes, you can always fork the code on the 'thumbs up' gem if you'd like to change how it works.