Gopala Krishnaiah, welcome to WikiTree! We're not affiliated with Geni. However, if you are a curator there you'll be familiar with using sources to choose the best among alternate theories of an ancestor's parentage. I hope you'll appreciate our focus on collaboration, and of course you'll already be familiar with building a global tree.
I am a Geni user myself and will often find connections on one tree that aren't on the other, so I enjoy checking the evidence and adding (or sometimes removing) the connection in both places.
As you spend some time with the new member tutorial pages and add a few profiles, you might enjoy joining one of our projects! Check out our Saturday Sourcing Sprints and cleaning Challenge of the Week. Bring some of your favorite ideas from each tree so that both will be improved by your participation.