Having a steady supply of group teleport can do absolute wonders for the overall speed of many TFs.
I still make the majority of my picks based on what the character needs.
Examples: Alpha musculature ALMOST always wins but my dark/stone tank had to go with the one that reduces end cost.
I normally stick with Destiny Barrier because as an SR main, mitigation is more important than healing. Course, my SR and Shield Tanks don't need more mitigation so they get the Rebirth +MaxHP heal.
All my meleers go with Hybrid Assault, as do the majority of my characters, but some, a defender and a mastermind come to mind, go the Support route.
For Lore, it's always carnies radial now. Cuz... yummy Dark Ring Mistress.
Ok, maybe I'm not needs based as much as I am "use what works best and that's usually these picks...."