I never cook with the microwave. It only gets used for defrosting or re-heating meals I have cooked on the hob or in the oven.
I love the slow cooker. It does great casseroles, curries, stews, especially those made with cheap cuts of beef such as brisket, skirt or shin. Great in Autumn or Winter.
Now, pressure cookers. I found a 3l Prestige one in one of those glory-hole shops the other day for £25 - they are £45 from Prestige and about £30 on Amazon plus postage. So I bought it. Today I did a half chicken in it with some stock - 13 mins from in the pot to turning the hob off. It was sooo good, fell off the bone and still tasted of chicken. I am now off to look for some recipes on the Internet.
I am tempted to ditch the microwave.