BB10 will do great. Yes they're very late but it will (hopefully)be bullet proof. I currently have a 9900 BOLD and I havent had any problems with it(I've had it over a year now). They released the playbook too early and look what happened there - they tanked it.
Samsung / Iphone arent work phones.. they're toys. RIM is releasing 6 models varying in price/ quality in 2013. I don't think I'd get the all touchscreen model - I'd wait for the one with the keyboard.
According to many who have used the BB10 alpha dev device the web browsing fully supports HTML 5 and is just as quick as a pc.