The best replacement for editplus is ultraedit.

The best alternatives to editplus are rated as following:
★★★★★  ultraedit
★★★★★  notepad++
★★★★  textpad
★★  pspad
  emeditor

Your alternative for editplus is not listed? Suggest!
Speaking about editplus, one probably shouldn't forget about xml formatting.

Other search terms related to editplus and their ratings are:
★★★★★ xml formatting
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editplus
ultraedit
notepad++