There’s an article at the Chronicle for Higher Education reviewing Endnote vs Zotero. Here’s the summary:
- Cost: Zotero. It’s free.
- Collecting online sources: Zotero. Although Endnote has endnote web, but Zotero is much more versatile
- Sync: Zotero
- Overall speed: Endnote
- Citation speed: Endnote
- Citation editing speed: Zotero (for beginners), Endnote (for advanced users)
- Sharing sources: Zotero
- Finding full text: Endnote, it has links to libraries
- Creating sources from PDF. Surprisingly, he said Zotero, because it is integrated with Google Scholar. But endnote is integrated with DoI
- Customizeability: Endnote
My verdict: Endnote still wins, because I fancy speed. Slow citation manager may cause frustration.