They are all great brands. To some extent it depends what is most available where you live .. where I live Rainbird has a large share of the market and are most available at a good price.

However .. I'd stay clear of department store merchandisers and deal with an irrigation supplier that sells the pro versions of the above brands.

I don't know your project but they key is to study the catologs of each brand and see what products will best fit your irrigation needs. Using a good product for the wrong application is always going to give poor results.

One could also use a controler from one brand and valves from another ect. .. it does not have to be all the same brand. Irritrol is another brand you may want to check out and Netafin has some interesting drip products.

Look over your landscape and catologs .. write back I'd be glad to throw in my two cents.

Good Day ...