Spark Plugs: Champion vs. Unison

I've Googled for this and poked around other places, but there doesn't
seem to be much comparison data on these two products.

I've always used Champion plugs (massive electrode), but now that my
plugs are fairly worn and I'm in the market again, I'm curious about
opinions on the Unison Autolite plugs. They are $5 cheaper per plug. I
will pay the extra $5 per plug if the Champions are better plugs, but I
have no personal experience with the Autolites.

Any advice?


Thanks,
JKG