According to at least one aspect, a method for predictive Intra coding is provided. The method comprises: determining a set of Intra prediction modes used for prediction unit (PU) blocks with a plurality of different block sizes comprising a 4×4 block size and at least two other block sizes; applying predictive Intra coding to a first PU block having a first block size that matches a block size in the plurality of different block sizes based on one or more neighboring PU blocks according to a first Intra prediction mode selected from the set of Intra prediction modes; and applying predictive Intra coding to a second PU block having a second block size that is different from the first block size and matches a block size in the plurality of different block sizes according to a second Intra prediction mode selected from the set of Intra prediction modes.