The best replacement for 500d is 550d.

The best alternatives to 500d are rated as following:
★★★★★  550d
★★★★  1000d cordura
★★★★  1000d
★★★★  50d
★★★★  1100d
★★★★  600d
★★★  40d
★★★  60d
★★★  nikon d5000
★★  d90
★★  nikon d90
★★  nikon d3100
★★  450d
★  d3100
★  d5000
★  1000d camelbak bfm
★  250d
  100d
  canon 550d
  30d
  canon 50d
  extension tubes
  6t
  110d
  canon eos 550d
  extension tube
  canon 450d

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Speaking about 500d, one probably shouldn't forget about 24-105.

Other search terms related to 500d and their ratings are:
★★★★★ 24-105
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500d
550d
1000d cordura