CorelDRAW is a widely used and respected vector drawing and editing program. The CorelDRAW suite includes an image editing application called PhotoPaint. CorelDRAW also allows you to assemble bitmaps and vectors together to do all sorts of production tasks in signmaking. CorelDRAW, in and of itself, cannot be compared to Adobe Photoshop.
FlexiSign is, IMHO, the best vector drawing and editing application on the planet. It is also a signmaking program which allows you to assemble bitmaps and vectors together to do all sorts of production tasks. FlexiSign, in and of itself, cannot be compared to Adobe Photoshop.
Adobe Photoshop is the standard in image editing and is a superior application to Corel PhotoPaint. What one does in Photoshop has very little to do with vectors and vinyl cutting. If you are going to be printing then it is the best application for setting up your jobs. There are many things you can do or do more easily in Photoshop and, with its huge user base, has lots of third party products available along with support and tutorials second to none.
Photoshop, by itself, costs nearly double what the CorelDRAW suite costs. Whether or not you want and need to do the kind of work that justifies the investment is up to you and your finances. But it is as successful as it is for lots of good reasons and is a powerful tool in the hands of an experienced designer.