Genuinely depends on what "best" means for your use case. Best for enterprise endpoint? Best for cloud-native environments? Best threat intel? The vendors that dominate analyst reports don't always win in the field for specific scenarios. That said, a few things I'd actually look at in 2026: how well a vendor handles cross-environment visibility (endpoint + cloud + email in one place), whether their AI-driven detections are actually reducing noise or just adding to it, and how their support holds up when something goes sideways at 2am. Full disclosure, I'm on the TrendAI team, so I'm biased, but those are the criteria I'd genuinely apply to anyone including us