http://effin.highfiveguild.com/sims/..._trinkets.html
If you are talking about MM trinkets, you can look this up by looking for HASTE (which should find the threetoed_rabbit_foot (-830--TF4---HASTE--), later down the list). When you find the threetoed_rabbit_foot (which is essentially equivalent to any other stat stick), you can see that the stat stick with haste at 830 ilvl is just below an 865 ilvl horn of valor (which isn't in the game yet, so it's marked orange--though it should probably be marked yellow since it will be out with EN because it will come from Mythic+ dungeons). So, yeah, the assumption that the haste stat stick is more powerful is true right now.
The stat sticks are a bit too powerful, imo. When situations like this have happened before (e.g. with Felspring Coil or the dungeon trinkets right before Highmaul/BRF), Blizzard tended to nerf them really quickly into a tier, but we'll see if they leave them this powerful in EN.
P.S. BM 6 target color-coded trinket sims are now uploaded. I have to travel over the next few days, so I may not be responding as frequently to this thread or messaging as usual. It may be a few days before I do SV relic sims to catch it up to the other two specs.