The best replacement for surface is ipad.

The best alternatives to surface are rated as following:
★★★★★  ipad
★★★★  surface 2
★★★  laptop
★★★  surface pro
★★★  granite
★★  ipad mini
★★  chromebook
★★  surface rt
★  ipad air
★  deep structure
★  asus t100
★  galaxy tab
★  substance
★  android tablet
★  ipad commercial
★  source traits
★  nexus
★  kindle fire
★  venue
★  corian
  deep culture
  quartz
  surface 2 specs
  asus
  laminate
  ultrabook
  deep structures
  galaxy
  dermal piercings
  samsung tablet
  galaxy tab 10.1
  ipad 2
  nexus 10
  surface 2 tablet
  granite countertops
  granite surface
  ipad comparison
  deep dyslexia
  bulk
  apple i pad
  apple ipad
  ipad 4
  transformer
  samsung slate

Your alternative for surface is not listed? Suggest!
Speaking about surface, one probably shouldn't forget about type cover.

Other search terms related to surface and their ratings are:
★★★★★ type cover
You have in mind a companion for surface and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of surface in all years. Click on graph for more.
surface
ipad
surface 2