Pantheon Builds!

[Orion SeigeBlade]

Hey all,
I'm looking for a good pantheon build.
I used to use:
Boots of Swiftness
Manamune
Sword of Occult
Black Cleaver
Infinity Edge
Last Whisper

Any idea's on a better build I would love to have your thoughts and input!

 

[Orion SeigeBlade]

I have a 2nd build here tell me what you guys think!
Boots Of Swiftness
Sword Of Occult
Stark's Fervor
Blood Thirster x2
Last Whisper