Which sport ATV should I get?

I'm not sure in what to buy a honda trx400ex or a suzuki z400, or a raptor 660r the thing is, the zusuki and the raptor are the same price, the suzuki looks really clean, i mean the three atvs look great, but i just want them to go to a mountain environment. The honda is cheaper, but i'm afraid that it doesn't have the power to climb or overheat (air cool engine) the suzuki and the raptor are liquid cool. I have heard that the raptor 660 is problematic (engine issues) while the suzuki and honda are bullet proof machines. Need some advice. Sorry for my writing.

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