I'm doing iOS now, but for Win I would choose Delphi if the price was not absurdly high. WinForms, WPF, Silverlight does not produce a self sufficent app. Qt is a great choice for Win, but about $4k per developer/year (for self sufficent app).
Cannot use Lazarus for DevExpress does not support it. Their amazing UI components and native nature of Delphi lets you build visually attractive and very fast and robust applications.