Which Beadalon stringing wire should I choose?

BEADALON 49 - PROFESSIONAL SERIES BEAD STRINGING WIRE Professional Series Beadalon 49 combines the flexibility and convenience of thread with the strength and durability of stainless steel wire. Specially designed for stringing ceramic, glass, metal, and stone beads as well as seed beads and freshwater pearls, Beadalon 49 is the softest and most flexible of all Beadalon varieties. Designs fashioned from Beadalon 49 drape very naturally without kinking. Easy to use without the aid of a beading needle, but is so soft and flexible that it can be knotted. Made in USA.

BEADALON 19 - DESIGNER SERIES BEAD STRINGING WIRE Specifically developed for bead stringing, Designer Series Beadalon 19 is an ideal choice for creating treasures with seed beads, freshwater pearls, and ceramic, glass, and stone beads. Contains 19 strands of strong stainless steel. Nylon-coated for increased kink and abrasion resistance, Beadalon 19 is easy to work with (no needle necessary), super-strong, and renders secure jewelry that lasts! Made in USA.

BEADALON 7 - CRAFT SERIES BEAD STRINGING WIRE Softer and stronger than Tiger Tail and more supple for a smoother drape, Craft Series Beadalon 7 encases seven strands of fine-diameter stainless steel wire within a kink-resistant nylon coating. Beadalon 7 is easy to work with (no needle necessary) and abrasion-resistant for longer-lasting results. Use Beadalon 7 for most general beading designs. Made in USA.