I'd have to say that I'm a Shimano girl all the way...

I test rode I think it was Rival. I didn't like it. I thought it was rough. Loud. And the reach was uncomfortable. Yes... it's lighter. And I think it was less $. Strong selling points. But not enough for me.

Our mtbs have Shimano lower end. It's a bit rough. But, it's mtb. Gets beat to he$$ and back.

My old roadie has Shimano 105. Comfy reach. Performed steady.

My new ride has Ultegra SL. Bit smoother than the 105. I have the R700 short reach shifters. They are great. No worries on reach what-so-ever.

FWIW.