Which board is the easiest to convert to vB?

[jurse]

I am looking to launch my forum with an open source board and if my niche takes off pay for a vB license. Before I do that I wan to know which board is the easiest to convert to vB?

I only know of two boards phpbb and smf, if you know of another (legitimately) free board please post.

thanks.

 

[.v0id]

Both are easy to convert with Impex (use search to find out more about that).

If you want free and good board that is similiar to vBulletin, then try MyBB (google it!)