I think it's all a matter of personal preference. Personally, I will use a weaker reactive ball when shooting cross lane because I can flatten my wrist and throw enough speed (around 19-22mph) to keep it from hooking in the back.
Since you're just getting back into the game, I would first get back into the swing of throwing cross lane and getting a good feel for that prior to deciding a spare ball may be necessary. After a 10 year layoff that I had, I found that my speed increased to where I can even throw my Roto Grip Defiant cross lane and 9 times out of 10, it will pick up the cross lane spares easily. In either case, a good pro shop can give you further advice.
As for the Victory Road and Frantic, both balls are very good at what they do. Just depends on the lane condition. I would probably see you throwing the Frantic because of the lower speed. That ball will more than compensate for it. Another really good option is the Roto Grip Rising Star. It is very similar to the Frantic, but usually costs a little less and is slightly less skid/snap. That ball like the Frantic easily covers medium and light patterns.
Good luck and let us know how you make out.