Maxells go for $1.20-$1.30 each
Verbatims $1.40-$1.60 each
Taiyo Yudens are $1.50-$2.00
Those are 100 count prices. www.rima.com (or acca products, same company) have the best price on TY's, but their Verbatims are a little higher.
The Verbatim allows for a greater surface area to print to, but have a Verbatim and DVD-R 4x printed on the hub. The TYs have a 44mm center compared to Verbatims 36mm.
I don't have any experience with the Maxell printables, but can vouch for the quality of their silver non printables. Heres a link for a decent price on those printables http://www.shopperwiz.com/shopdisplaydetail.asp?REF=D_BRAND&id=96732275