Which is better an amp with effects or pedals?

i was thinking about getting a new amp. there is just one question i have. one amp i am looking at is a fender that has many effects so i wouldnt need pedals. the other is a ibanez with had basically no effects and i would need to get pedals. which is better in the long term? if i got a new amp to do performances with could i keep the same pedals?