Which would be a better surround processor.

Please don't take this the wrong way. I am sure in their day, they were both fine processors. But they do not have HDMI nor will they decode the latest Lossless formats - Dolby True HD and DTS Master. So I would say use the one that at least has 5.1 or 7.1 multi channel inputs so you can use the lossless decoders from a Blu-ray player - assuming you are using this as a source. You don't mention.

Since you are updating, you may want to consider a current processor with the latest decoders. They do sound spectacular and a single HDMI cables can replace 7 RCA interconnects. Hope this helps.

Thats assuming he has an Oppo 105 Dbphd. Or any BDP with built in decoders and multi-channel analog outputs. We do not even know what he has for a source. He doesn't tell us.

Since he asked about two now fairly obsolete pre/pros and which to use, I suggested he use the one with multi-channel analog inputs IN CASE he has a Blu-ray player with a full set of analog outputs to enjoy the lossless codecs.

So only under these circumstances, he would not need a new pre/pro. If he is even interested in the new lossless formats. Maybe he is not.