Heated Towel Rails Stainless Steel Or Chrome Heated Towel Rail - Stainless Steel Or Chrome Plated? Curved Or Straight?

Heated towel rail - stainless steel or chrome plated? Curved or straight? - heated towel rails stainless steel or chrome

I replaced my small bathroom and by the time the need to buy a towel for him.
First I know if it's worth spending a little more of a need of stainless steel, the face of money (especially if you hang wet towels and so on)
Secondly, it is interesting to buy the additional heating element is compatible with most species.
Third, what is the difference between the curves and straight? I believe this is purely cosmetic!