The best replacement for hd2 is hd7.

The best alternatives to hd2 are rated as following:
★★★★★  hd7
★★★★  nexus one
★★★  desire hd
★★★  evo
★★★  iphone 4
★★★  htc evo
★★★  hd3
★★★  g2
★★  desire
★★  vibrant
★  htc hd7
★  samsung vibrant
★  evo 4g
  samsung galaxy
  htc desire hd
  hd4
  droid incredible
  htc desire
  omnia ii
  nexus
  touch pro 2
  htc touch pro 2
  nokia n900
  n900
  behold 2
  samsung galaxy s
  defy
  hd2
  iphone4

Your alternative for hd2 is not listed? Suggest!
Speaking about hd2, one probably shouldn't forget about android 2.2.

Other search terms related to hd2 and their ratings are:
★★★★★ android 2.2
You have in mind a companion for hd2 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of hd2 in all years. Click on graph for more.
hd2
hd7
nexus one