The best replacement for p3 is p4.

The best alternatives to p3 are rated as following:
★★★★★  p4
★★★★  type r
★★★  p6
★★★  p5
★★  l7
★★  p8
★★  w3
★★  p2
★  alpine type r
★  p5 cervelo
★  shiv
★  g6
★  p3p
★  prodigy
★  cvr
★  pliko lite
★  p3c
★  c130
★  s9
★  rec 709
  suretrak
  p5 headphones
  specialized shiv
  he2
  cowon s9
  p7
  trek speed concept
  p3e
  w6
  e-pl3
  jl w3
  trek ttx
  optishot
  cervelo p4
  zune hd
  duron
  p17
  zippy
  ms project
  rp1
  hyperlites
  l5

Your alternative for p3 is not listed? Suggest!
Speaking about p3, one probably shouldn't forget about kx3.

Other search terms related to p3 and their ratings are:
★★★★★ kx3
You have in mind a companion for p3 and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of p3 in all years. Click on graph for more.
p3
p4
type r