Combat styles are really dependant on the character: given this monk:
Random Monk, Male ExPsiHb, Elan Mnk20: CR 20; Medium Aberration (Psionic); HD 20d8+40(Monk) ; hp 134; Init +12; Spd 90; AC:41 (Flatfooted:33 Touch:33); Atk +16/11/6 base melee, +23/18/13 base ranged; +23/18/13 (2d10+1, Unarmed strike); SQ: Repletion (Su), Resilience (Su), Resistance (Su), Naturally Psionic: 2 Bonus PP; AL LG; SV Fort +14, Ref +20, Will +21; STR 12, DEX 26, CON 14, INT 10, WIS 28, CHA 8.
Skills: Balance +15, Climb +10, Concentration +10, Escape Artist +31, Heal +11, Hide +25, Jump +25, Listen +20, Move Silently +25, Survival +11.
Feats: Blind-Fight, Combat Reflexes, Dodge, Improved Grapple, Improved Initiative, Improved Natural Attack: Unarmed strike, Improved Trip, Improved Unarmed Strike, Naturally Psionic 2, Self-Sufficient, Stunning Fist, Weapon Finesse.
Possessions:
Goods: Coin: gp (2050) (2,050 gp).
Magic: Wondrous: Periapt of Wisdom +6 (36,000 gp); Wondrous: Belt, Monk`s (13,000 gp); Wondrous: Boots of Teleportation (49,000 gp); Wondrous: Bracers of Armor +8 (64,000 gp); Wondrous: Cloak of Displacement, Major (50,000 gp); Wondrous: Cube of Force (62,000 gp); Wondrous: Bottle of Air (7,250 gp); Wondrous: Gloves of Dexterity +6 (36,000 gp); Wondrous: Iron Bands of Bilarro (26,000 gp); Eversmoking bottle (5400gp); Ring: Three Wishes (97,950 gp); Ring: Freedom of Movement (40,000 gp); Wondrous: Decanter of Endless Water (9,000 gp); Potion: Water Breathing (10) (1,500 gp); Potion: Water Breathing (10) (1,500 gp); Potion: Water Breathing (10) (1,500 gp); Wondrous: Heward`s Handy Haversack (2,000 gp); 13 Potion: Cure Serious Wounds (5) (750 gp); 10 Potion: Gaseous Form (5) (750 gp); 3 Wondrous: Dust of Disappearance (3,500 gp); 4 Wondrous: Elemental Gem, Water (2,250 gp);
Used: Wondrous: Manual of Quickness of Action +4 (110,000 gp); Wondrous: Tome of Understanding +4 (110,000 gp);
Vs the hyperthetical wizard. He would simply put up cube of force on his initiative. Inside any force cage that they wizard set down. Then immediately open the bottle of endless water and the eversmoking bottle. Since, he is probably at this point dimensionally anchored and protected inside his force cube he waits until he needs to drink a water breathing potion. Summones his Water elementals and then uses the ring of wishes to wish to wizard was in the cube with him. The fight truely begins at this point. Monk underwater and blinded by smoke in the water grapples the wizard with the aid of the water elementals. Fight becomes a very messy fight for the wizard.
As you can see, it's all a matter of style.