Now let's break this down a second.
Pre-crisis Fate was at least equal to Strange, most agree.
Post-Fate is not even close, and since PC Fate doesn't exist anymore, then this must be post-Fate we're talking about.
Ok then.
Zatanna is around 23 years old, she's a novice prone to panic and needs complete concentration to caste spells.
Raven is the only one Strange's team needs to worry about, but not much.
Clea is only a step or two below Strange, which makes her >>>>>Zatanna.
Roma is also close to Strange's skill, which makes her = to Raven.
Strange is > Hector.
Zatanna & Raven are taken out the first few seconds, and Strange handles Fate with a good bit effort but nothing extreme.
Not a large curbstomp, but a curbstomp none the less.