Can't call it soft if you can do the whole race on the tyre. Might as well be hard. I have posted this view before but never the less: My Answer would be A range of up to 4 tyre compounds. A Hard: With a struggle will last the whole race, but at a steady pace and only with a kindness to the tyre i.e Buttons style. A Medium:A tyre to do a 1 stop but faster than the hard compound and not as much tyre managment needed. A Soft: You can attack from the outset but wear will mean a 15-20 lap stint but gaining 2 seconds a lap over Hard and a second over Medium. Super Soft: A Qualifying tyre for Quali, and if you wish an 8-10 lap stint and 3-4 seconds faster. I know the timings are a bit mythical, but you get my point hopefully. In a race imagine Button trying a whole race with no stop v Hamilton banzi-ing a 2 or 3 stops at 3-4 seconds a lap faster. While Vettel comes into play with stopping once just at the right time. A bit far fetched, but would be cracking in my ideal F1. I would like to think you'd get drivers playing to their strengths or track conditions giving you different strategies and the speed differential to overtake, which Hamilton would need to do in that scenario 2 or 3 times. You may not agree and it will never happen but thats my view.