Everyone has thier preference, I hate cordless, wont hold a charge, if you drop it it breaks, ugh just a pain in the azz imo.
I have never had a problem with Wahl, they have a great one for horses @: http://www.wahlanimalstore.com/produ...?T1=WAH%208886
I only use wahl at my salon and for my pets, as long as you keep it maintained it will last forever. I still have my wahl that I bought when I was taking my course as a color technician/stylist (15 yrs ago lol) and I use that one on my dogs and it still runs like new.
Again it is a personal preference imo, Wahl always worked great for me.