The most efficient way to practice scales is
slowly. Once you have decided on a pattern to practice (all those mentioned are good, there are many others), play it at no more than 1/8th notes at 1/4 note = 60 BPM. While you are playing the scale, concentrate on several different things (start with one at a time...)
1)
hearing the subdivision - that is, while playing 8th notes, you should be subdividing the beat in your head at 16th notes, two subdivisions per note
2) concentrate on making the transition from one note to the next
instantaneous - you don't want to move your fingers violently, or jerk in any way, but the movement between, say, G and A is this - 3 fingers down -> 2 fingers down. Don't let the ring finger come up slowly, and don't let it snap up, just let it instantaneously move from down to up. And not too high up, either, it should be just over the key. Look at some u-tube videos of greats playing, you will see an amazing economy of finger movement.
3) concentrate on keeping your tone
smooth, especially over jumps (i.e., C2 -> D2)
4)
DO NOT GO TOO FAST TOO SOON - spend a week at 60 BPM, then go to 64 for the next week.
If you do this 30 minutes daily, in about 6 months you will have the most even, smooth, fast scales you can imagine. From that point on, keep doing it 15 - 20 minutes a day, slowing down if you are aware of any imperfections in timing or finger action.
Apply these same principles to other patterns you learn - diminished scales, pentatonics, 4 note patterns, etc. Once you have the basic approach down, you CAN progress in tempo a little more rapidly, but don't go TOO fast. (For example, go up 2 or 4 BPM every other day instead of every week.) If you are making ANY mistakes, slow down - otherwise you are practicing your mistakes, and you will certainly play them when you gig
Regarding the cycle you use, I think that's relatively unimportant - go by 1/2 steps, whole steps, minor thirds, 4ths, whatever. Just make sure you play every scale throughout the full range of the horn.