When You designing two stage ota, the first of all You need to add a compensation network (e.g. Miller cap with nulling resistor or used a cascode compensation). Your amplifier is unbalanced - output transistor should be matched with first stage current mirror load. In addition the phase margin and GBW depends to feedback type, reference voltage, etc.
I think that should be possible to meet your requierements with single stage RFC - telescopic doesn't provide enough swing with nominal power supply, two stage will probably be too slow for 100MHz of GBW and resonable power consumption (but I don't know which technology You are using - 180nm? but which?).