Let me throw out some stuff for you to chew on and get you reading. As stated by others, each breed can have good and bad breeding. Here are some things you want to look for.
Polled – avoid need to burn horn buds, apply dehorning paste or dehorn
Docile – safer, easier to handle, and gain better than wild cattle
Moderate framed – supposedly more efficient than larger cattle
Good udders – want them high and tight to last longer, and if teats too big, calf can't suck
Good feet – don't want feet that grow long and need trimming or break down
Calving ease - calving problems hard on everyone
Lighter colored to reflect solar radiation and tolerate heat better
Pigmented skin to avoid sunburn
British breeds include angus, Hereford, shorthorn, murray grey, british white.
Continental (from European continent) breeds include Limousin, Charolais, Simmental, Gelbvieh.
British breeds generally considered more maternal – make better cows.
Continental breeds generally more growthy for making meat.
One could get british cows and breed to a continental bull.
A sample answer would be to get some quality Red Angus cows and breed to a quality Charolais bull.
It gets more complicated when considering what sells best. Sale price is a big focus, as it's easy to see, but not the only measure of profitability. And depending on how big you get, profit may not be your only motive.
