Schwalbe Marathon Plus vs. Vittoria Randonneur vs. ???

I've never had any issues but then I tend to adjust my speed appropriate to the conditions unlike some people who just barrel around corners in the pissing rain and wonder why they just fell off. I've used them mostly on a TT bike so it tends to be fast but in a straight line. Maybe the odd emergency stop when some douche nozzle has pulled out without looking. They're meant to be more on the durable side so the rubber certainly won't be as grippy as what you'd find on race tyres but to me it 'appears' softer than Rubino Pro which I also like (though some others found them slippery). I run them in 25mm version and they suit my long range straight line needs. If I was still racing crits I wouldn't be using them.