mixedmama when my youngest was 4mths old I had to go back to work and started to look for childcare. I had never needed child care in the past with my other three so my mind was a complete blank, and whatever impressions I had of either form of care were not based on first hand experience. In fact I don't know what they were based on. My initial gut feeling was probably that a nursery would provide 'safety in numbers' and that I didn't want my baby to become too attached to another woman.
Then I went to look around two local nurseries and left with an overwhelming feeling of being totally physically unable to leave my baby in a 'baby room'.
I started to look for a childminder instead, and my son stayed with his lovely chldminder until the term before he was due to start school.
He then went to one of the two original nurseries so that he could be part of a larger group of 4yr olds and start to cope with the more institutional lining up, putting hands up, being part of a crowd etc rather than part of a family (and he had been very much included and cherished as an honarary member of his childminder's own family).
The nursery was fab for a four year old and most likely also for 3yr olds.
My son often remembers things about his time there and asks if he can go back to visit.
For babies I would go firstly on your gut instincts AFTER visiting, and then ask for references from current parents and staff and even ask to sit in on a day if possible.
Visit as many childminders and nurseries as you can and then you can base your decision on good research. Sometimes it does come down to whoever has the spaces you require, but nothing compares to doing your homework and getting out there with an open and enquiring mind and seeing for yourself.
I was so impressed by my son's childmnder that I became one myself and now care for 6 under fives and employ an assistant.
In some ways I do consider myself to be more of a nursery than a childminder and if I ever were to move to business premises and set up a larger nursery (which I doubt as I love this so much), then I know that my nursery would be just as good as my childminding is now for all ages.
Good luck and I hope you find some really great care for your two.