Is it better to eat egg Matza at the Seuda or is it better to eat Challa at the Seuda? What are the pros and cons of either choice?
Pros = oneg Shabbos, For sure a seuda as long as you eat a kizayis
Con = Hametz which causes stress for neurotic housewives on almost erev Pesah
Pro: Not Hametz and therefore does not cause stress for neurotic housewives on almost erev Pesah
Cons: Not really oneg Shabbos when compared to Challah (unless you have strange taste or bad Challah), In order to for sure be a kevias seudah and require HaMotzi and Bircas hamazon according to all opinions you would need to eat 4 or 5 kebeitzos of it.
Hashem told us that Pesah (regarding issur hametz) starts on the 14th of Nisan, in the afternoon. Why should we add more than what Hazal saw fit to add to that time? Get the ladies some psychotherapy and let us men enjoy our Shabbos seudos the way they were meant to be!
Yet another possibility: use challah, but eat it on your porch or whatever, away from the Shabbos table. Then return to the table and eat the rest of the (Pesachdik) meal. That is what my family and I do.