Anglican/Episcopal churches range from more of an evangelical liturgical expression to the Anglo Catholic liturgy, which usually or did use the Anglican Missal, which is very close to the EF but in the vernacular.
The Anglicans coming into the Ordinariate are of the second group. The parishes which have already been Catholic using the Anglican Use liturgy, which is being revised and rumor has it that in the US it might be even closer to the EF, than the Anglican Use parishes, which are Catholic are now allowed to use at present. Rome decided over 28 years ago to add some of the responses from the BCP 1979 and from the Roman Rite. These parishes will be part of the Ordinariate once it is established.
If you want to see an Anglican Use Catholic Mass that is being used at the present time you can view a video at
www.atonementonline.com by clicking on the video of the liturgy made in 1994.
Except for the changes Rome made it it typical of an Anglican liturgy.
Within the Anglican Continuing parshes there seems to be many differences in individual parishes and of course if you are speaking of the Episcopal church, well that is another issue.
Yours in the Hearts of Jesus and Mary
Bernadette