Better to bid: Ebay or through Heritage?

For the upcoming FUN auction I saw that it is a Ebay live auction as well as through Heritage's site. If you were to bid which method is better? I see Ebay is a 20% fee, is the Heritage site only 15%? Either way I am hit with tax.
http://www.bluccphotos.com" target="new">BluCC Photos Shows for onsite imaging: Nov Baltimore, FUN, Long Beach http://www.facebook.com/bluccphotos" target="new">BluCC on Facebook
0
Comments
Also the "live" connection seems better from Heritage,at least for me.