The classical Orthodox and Greek Catholic lay prayer books are more alike than different. They all contain more or less the same morning and evening prayers, devotional prayers for different needs, canons, and akathists.
Two good ones to compare would be the famous Jordanville Prayer Book and the Prayerbook published by the Melkite eparchy. The former has excerpts from Vespers, Matins, and Divine Liturgy. The latter lacks these, but gives the Canon of St. Andrew of Crete and Troparia for every day in the year.
One is Tudor English, the other contemporary.
In other words, they are pretty much the same.
