Although he lost, his fight vs. Danny Little Red Lopez is THE fight to watch if you're going to watch a Mike Ayala fight. Great fight.
Like his brothers, it's hard to say how much potential he had. Their father was a complete monster and all the sons either ended up terrible people or escaping reality through drugs and/or booze, which is what held Mike back a lot.
He fought for the featherweight title against Lopez, then made the uncommon move of making a permanent shift DOWN in weight to junior featherweight and got two shots at the title but lost twice.
His biggest wins were over ex-champion Julian Solis and Nicky Perez (who'd only lost to Wilfredo Gomez at that point). But he couldn't ever get past the champions he fought: Lopez, Juan Kid Meza, and Daniel Zaragoza.