Bumper Pull vs Gooseneck?

I plan on buying myself a horse trailer but need help on deciding which pull type to get. I am going to buy a truck, more than likely a diesel chevy or something of that sort, that way I will be over towed rather then under toed. I would rather be safe then sorry and don't want to take any chances. So the thing is that I'm only going to buy myself a two horse trailer. That's it. Just a two horse-straight load trailer. I want a tack/dressing room so that makes a two horse bumper pull larger then normal. I understand bumper pulls follow the truck and makes that easier and then goosenecks have more stability making it much safer. I would use it traveling mountain roads (Highway 74) to the monthly gymkhana (local, affordable rodeo) and horse camping from california to oregon, washington, and other states. I don't care about "living quarters" but the gooseneck bed would be a little nice. So my question is, "Would a two horse bumper w/ dressing/tack room being towed by a vehicle rated at a high towing rating be as safe or safer then a two horse gooseneck w/ just dressing/tack room?" I want what is safest and I understand that bumper pulls are much more affordable then goosenecks so please tell me your opinion, and remember I'm only getting a two horse trailer! Thank you :)