pure OpenLayer is good or GeoExt WHich have more options w.r.t GIS client-side
closed as not a real question by R.K., iant♦, CaptDragon, Aaron, Get Spatial Nov 28 '12 at 0:36
It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.
This is somewhat of a trick question. In terms of GIS functionality, both GeoExt and OpenLayers are very good, approximately equally well-suited to whatever your application is. This is because GeoExt is based on OpenLayers.