Depending on your preferences/skill level etc. there are many good options out there, the advantages of the Glocks/XDs are ease of use. Draw gun, aim gun, pull trigger. That being said, I shoot a CZ 75B 9mm in Production. It is an DA/SA gun with a manual safety, and can be operated in either mode as well as having the possiblity of being carried "condition 1" (cocked and locked). For me it is a more natural grip fit, and it is more accurate for me than anything else i have shot. On the ease of use side, I have to manually drop the hammer during the LAMR, when shooting production. They do make decocker versions of the same gun, which from an ease of use perspective would make it better for production, but would limit it to production only. The 75B could play in production, limited, and limited10 with little or no mods sans possibly a magwell and a good trigger job. I shoot mine bone stock, in production, and it is 100% reliable, which is more important to me than any one feature it may or may not have. (plus they retail for about $425 with 2 mags). A glock or xd would be a fine choice. Research them all, try what you like, and shoot what fits.