I have the accuquilt studio/mark die cutter. I use my 2 1/2" strip cutter everytime I do a quilt just for the binding. My most used dies are the strips, blocks, I have the 12" & 10" block variety dies but I don't do much with them. Most are still wrapped and I've had them for over a year. What I like is that the strips and blocks come out the same size, I don't think I could be any faster or more accurate than the studio.
I also have a cricut to cut out letters/numbers to applique, it cuts various sizes up to 5 1/2". Accuquilt does sell dies for letters/numbers but I don't have the storage for all the dies and the cricut has lots of alphabets to choose from. Good luck choosing your cutter!