EL CROQUIS is probably the best. it is usually a series of fairly in depth monographs on the most interesting architects practicing today. its quite expensive but they are more like books than magazines.
Architectural Review is good if you want an overview of lots of different buildings in fairly brief terms. might be better if your only in first year. the better stuff from ireland will get into this but not very often
Architecture Ireland is the RIAIs magazine this deals only with Irish architecture and has improved in line with the quality of buildings it reviews but still has a way to go to meet the international mags.
A+U (architecture and urbanism) is another good publication.